Depressive Symptoms in Middle Age and the Development of Later‐Life Functional Limitations: The Long‐Term Effect of Depressive Symptoms

OBJECTIVES: To determine whether middle‐aged persons with depressive symptoms are at higher risk for developing activity of daily living (ADL) and mobility limitations as they advance into older age than those without. DESIGN: Prospective cohort study. SETTING: The Health and Retirement Study (HRS), a nationally representative sample of people aged 50 to 61. PARTICIPANTS: Seven thousand two hundred seven community living participants in the 1992 wave of the HRS. MEASUREMENTS: Depressive symptoms were measured using the 11‐item Center for Epidemiologic Studies Depression Scale (CES‐D 11), with scores of 9 or more (out of 33) classified as significant depressive symptoms. Difficulty with five ADLs and basic mobility tasks (walking several blocks or up one flight of stairs) was measured every 2 years through 2006. The primary outcome was persistent difficulty with ADLs or mobility, defined as difficulty in two consecutive waves. RESULTS: Eight hundred eighty‐seven (12%) subjects scored 9 or higher on the CES‐D 11 and were classified as having significant depressive symptoms. Over 12 years of follow‐up, subjects with depressive symptoms were more likely to reach the primary outcome measure of persistent difficulty with mobility or difficulty with ADL function (45% vs 23%, Cox hazard ratio (HR)=2.33, 95% confidence interval (CI)=2.06–2.63). After adjusting for age, sex, measures of socioeconomic status, comorbid conditions, high body mass index, smoking, exercise, difficulty jogging 1 mile, and difficulty climbing several flights of stairs, the risk was attenuated but still statistically significant (Cox HR=1.44, 95% CI=1.25–1.66). CONCLUSION: Depressive symptoms independently predict the development of persistent limitations in ADLs and mobility as middle‐aged persons advance into later life. Middle‐aged persons with depressive symptoms may be at greater risk for losing their functional independence as they age.     

Depressive symptoms, chronic diseases, and physical disabilities as predictors of cognitive functioning trajectories in older Americans

OBJECTIVES: To determine the concurrent influence of depressive symptoms, medical conditions, and disabilities in activities of daily living (ADLs) on rates of decline in cognitive function of older Americans. DESIGN: Prospective cohort. SETTING: National population based. PARTICIPANTS: A national sample of 6,476 adults born before 1924. MEASUREMENTS: Differences in cognitive function trajectories were determined according to prevalence and incidence of depressive symptoms, chronic diseases, and ADL disabilities. Cognitive performance was tested five times between 1993 and 2002 using a multifaceted inventory examined as a global measure (range 0–35, standard deviation (SD) 6.0) and word recall (range 0–20, SD 3.8) analyzed separately. RESULTS: Baseline prevalence of depressive symptoms, stroke, and ADL limitations were independently and strongly associated with lower baseline cognition scores but did not predict future cognitive decline. Each incident depressive symptom was independently associated with a 0.06‐point lower (95% confidence interval (CI)=0.02–0.10) recall score, incident stroke with a 0.59‐point lower total score (95% CI=0.20–0.98), each new basic ADL limitation with a 0.07‐point lower recall score (95% CI=0.01–0.14) and a 0.16‐point lower total score (95% CI=0.07–0.25), and each incident instrumental ADL limitation with a 0.20‐point lower recall score (95% CI=0.10–0.30) and a 0.52‐point lower total score (95% CI=0.37–0.67). CONCLUSION: Prevalent and incident depressive symptoms, stroke, and ADL disabilities contribute independently to poorer cognitive functioning in older Americans but do not appear to influence rates of future cognitive decline. Prevention, early identification, and aggressive treatment of these conditions may ameliorate the burdens of cognitive impairment.     

Effect of arthritis in middle age on older-age functioning

OBJECTIVES: To examine whether symptomatic arthritis in middle age predicts the earlier onset of functional difficulties (difficulty with activities of daily living (ADLs) and walking) that are associated with loss of independence in older persons.
DESIGN: Prospective longitudinal study.
SETTING: The Health and Retirement Study, a nationally representative sample of persons aged 50 to 62 at baseline who were followed for 10 years.
PARTICIPANTS: Seven thousand five hundred forty-three subjects with no difficulty in mobility or ADL function at baseline.
MEASUREMENTS: Arthritis was measured at baseline according to self-report. The primary outcome was time to persistent difficulty in one of five ADLs or mobility (walking several blocks or up a flight of stairs). Difficulty with ADLs or mobility was assessed according to subject interview every 2 years. Analyses were adjusted for other comorbid conditions, body mass index, exercise, and demographic characteristics.
RESULTS: Twenty-nine percent of subjects reported arthritis at baseline. Subjects with arthritis were more likely to develop persistent difficulty in mobility or ADL function over 10 years of follow-up (34% vs 18%, adjusted hazard ratio (HR)=1.63, 95% confidence interval (CI)=1.43–1.86). When each component of the primary outcome was assessed separately, arthritis was also associated with persistent difficulty in mobility (30% vs 16%, adjusted HR=1.55, 95% CI=1.41–1.71) and persistent difficulty in ADL function (13% vs 5%, adjusted HR=1.85, 95% CI=1.58–2.16).
CONCLUSION: Middle-aged persons who report a history of arthritis are more likely to develop mobility and ADL difficulties as they enter old age. This finding highlights the need to develop interventions and treatments that take a life-course approach to preventing the disabling effect of arthritis.     

Trail Making Test Predicts Physical Impairment and Mortality in Older Persons

OBJECTIVES: To examine whether performance in the Trail Making Test (TMT) predicts mobility impairment and mortality in older persons. DESIGN: Prospective cohort study. SETTING: Community‐dwelling older persons enrolled in the Invecchiare in Chianti (InCHIANTI) Study. PARTICIPANTS: Five hundred eighty‐three participants aged 65 and older and free of major cognitive impairment (Mini‐Mental State Examination score >21) with baseline data on TMT performance. Of these, 427 performed the Short Physical Performance Battery (SPPB) for the assessment of lower extremity function at baseline and after 6 years. Of the initial 583 participants, 106 died during a 9‐year follow‐up. MEASUREMENTS: The TMT Parts A and B (TMT‐A and TMT‐B) and SPPB were administered at baseline and 6‐year follow‐up. Impaired mobility was defined as an SPPB score less than 10. Vital status was ascertained over a 9‐year follow‐up. RESULTS: InCHIANTI participants in the fourth quartile of the time to complete TMT‐B minus time to complete TMT‐A (TMT (B‐A)) were significantly more likely to develop an SPPB score less than 10 during the 6‐year follow‐up than those in the first quartile (relative risk (RR)=2.4, 95% confidence interval (CI)=1.4–3.9, P=.001). After adjusting for potential confounders, these findings were substantially unchanged (RR=2.2, 95% CI=1.4–3.6, P=.001). Worse performance on the TMT was associated with significantly greater decline in SPPB score over the 6‐year follow‐up, after adjusting for age, sex, and baseline SPPB scores (β=?0.01, standard error=0.003, P=.004). During the 9‐year follow‐up, 18.2% of the participants died. After adjustment for age and sex, the proportion of participants who died was higher in participants in the worst than the best performance quartile of TMT (B‐A) scores (hazard ratio (HR)=1.7, 95% CI=1.0–2.9, P=.048). Results were similar in a parsimonious adjusted model (HR=1.8, 95% CI=1.0–3.2, P=.04). CONCLUSION: Performance on the TMT is a strong, independent predictor of mobility impairment, accelerated decline in lower extremity function, and death in older adults living in the community. The TMT could be a useful addition to geriatric assessment.     

Peak expiratory flow as a predictor of subsequent disability and death in community-living older persons

OBJECTIVES: To determine whether peak expiratory flow (PEF), when expressed by a validated method using standardized residual (SR) percentile, is associated with subsequent disability and death in older persons.
DESIGN: Prospective cohort study.
SETTING: New Haven, Connecticut.
PARTICIPANTS: Seven hundred fifty-four initially nondisabled, community-living persons aged 70 and older.
MEASUREMENTS: PEF was assessed at baseline along with chronic conditions and smoking history. The onset of persistent disability in activities of daily living (ADLs), continuous mobility disability, and death were ascertained during monthly interviews over a 5-year period.
RESULTS: Participants' mean age was 78.4, 63.7% had a smoking history, and 17.4% reported chronic lung disease. The incidence rates per 100 person-months were 1.00 (95% confidence interval (CI)=0.90–1.12) for ADL disability, 0.80 (95% CI=0.70–0.93) for mobility disability, and 0.44 (95% CI=0.38–0.51) for death. At a PEF less than 10^th SR percentile, identifying nearly one-quarter of the cohort, hazard ratios (HRs) adjusted for multiple confounders, including age, smoking, and chronic lung disease, demonstrated a greater risk of ADL disability (HR=1.79, 95% CI=1.23–2.62), mobility disability (HR=1.89, 95% CI=1.15–3.10), and death (HR=2.31, 95% CI=1.29–4.12).
CONCLUSION: In an elderly cohort, it was found that low PEF, when expressed as an SR percentile, is independently associated with subsequent disability and death. These results support the use of PEF as a potentially valuable risk assessment tool in community-living older persons.     

Prediction of functional disability by depressive state among community‐dwelling elderly in Japan: A prospective cohort study

Aim: We carried out a prospective cohort study to evaluate the risk factors of functional disability by depressive state. Methods: A total of 783 men and women, aged 70 years and over, participated in this study. We followed the participants in terms of the onset of functional disability by using a public long‐term care insurance database. The Geriatric Depression Scale (GDS) was used to measure depressive state. Age, sex, history of chronic disease, living alone, fall experience, cognitive impairment, instrumental activities of daily living (IADL), the Motor Fitness Scale (MFS), frequency of going out and social support at baseline were used as the main covariates. The Cox regression analysis was used to examine the difference in functional disability stratified according to depressive state. Results: The incidence of functional disability was 38 persons in the non‐depression group and 42 persons in the depression group (RR 2.34; 95% CI 1.46–3.79). The results of the depression group showed a significant difference in cognitive impairment (HR 3.51; 95% CI 1.39–8.85), MFS (HR 5.60; 95% CI 1.32–23.81) and IADL (HR 3.37; 95% CI 1.65–6.85). The results of the non‐depression group showed a significant difference in MFS (HR 2.97; 95% CI 1.47–6.96), and frequency of going out (HR 3.21; 95% CI 1.47–6.96). Conclusions: In conclusion, risk factors for functional disability were found to differ on the basis of whether or not community‐dwelling elderly individuals experience depressive state. The type of support offered must be based on whether or not depressive state is present. Geriatr Gerontol Int 2012; ??: ??–?? .     

Musculoskeletal pain and incident disability in community‐dwelling older adults

Objective

To test the hypothesis that the number of areas of musculoskeletal pain reported is related to incident disability.

Methods

Subjects included 898 older persons from the Rush Memory and Aging Project without dementia, stroke, or Parkinson's disease at baseline. All participants underwent detailed baseline evaluation of self‐reported pain in the neck or back, hands, hips, knees, or feet, as well as annual self‐reported assessments of instrumental activities of daily living (IADLs), basic activities of daily living (ADLs), and mobility disability. Mobility disability was also assessed using a performance‐based measure.

Results

The average followup was 5.6 years. Using a series of proportional hazards models that controlled for age, sex, and education, the risk of IADL disability increased by ～10% for each additional painful area reported (hazard ratio [HR] 1.10, 95% confidence interval [95% CI] 1.01–1.20) and the risk of ADL disability increased by ～20% for each additional painful area (HR 1.20, 95% CI 1.11–1.31). The association with self‐report mobility disability did not reach significance (HR 1.09, 95% CI 0.99–1.20). However, the risk of mobility disability based on gait speed performance increased by ～13% for each additional painful area (HR 1.13, 95% CI 1.04–1.22). These associations did not vary by age, sex, or education and were unchanged after controlling for several potential confounding variables including body mass index, physical activity, cognition, depressive symptoms, vascular risk factors, and vascular diseases.

Conclusion

Among nondisabled community‐dwelling older adults, the risk of disability increases with the number of areas reported with musculoskeletal pain.     

Frailty: emergence and consequences in women aged 65 and older in the Women's Health Initiative Observational Study

OBJECTIVES: To define frailty using simple indicators; to identify risk factors for frailty as targets for prevention; and to investigate the predictive validity of this frailty classification for death, hospitalization, hip fracture, and activity of daily living (ADL) disability. DESIGN: Prospective study, the Women's Health Initiative Observational Study. SETTING: Forty U.S. clinical centers. PARTICIPANTS: Forty thousand six hundred fifty-seven women aged 65 to 79 at baseline. MEASUREMENTS: Components of frailty included self-reported muscle weakness/impaired walking, exhaustion, low physical activity, and unintended weight loss between baseline and 3 years of follow-up. Death, hip fractures, ADL disability, and hospitalizations were ascertained during an average of 5.9 years of follow-up. RESULTS: Baseline frailty was classified in 16.3% of participants, and incident frailty at 3-years was 14.8%. Older age, chronic conditions, smoking, and depressive symptom score were positively associated with incident frailty, whereas income, moderate alcohol use, living alone, and self-reported health were inversely associated. Being underweight, overweight, or obese all carried significantly higher risk of frailty than normal weight. Baseline frailty independently predicted risk of death (hazard ratio (HR)=1.71, 95% confidence interval (CI)=1.48-1.97), hip fracture (HR=1.57, 95% CI=1.11-2.20), ADL disability (odds ratio (OR)=3.15, 95% CI=2.47-4.02), and hospitalizations (OR=1.95, 95% CI=1.72-2.22) after adjustment for demographic characteristics, health behaviors, disability, and comorbid conditions. CONCLUSION: These results support the robustness of the concept of frailty as a geriatric syndrome that predicts several poor outcomes in older women. Underweight, obesity, smoking, and depressive symptoms are strongly associated with the development of frailty and represent important targets for prevention.     

Prognostic Significance of Potential Frailty Criteria

OBJECTIVES: To determine the independent prognostic effect of seven potential frailty criteria, including five from the Fried phenotype, on several adverse outcomes. DESIGN: Prospective cohort study. SETTING: Greater New Haven, Connecticut. PARTICIPANTS: Seven hundred fifty‐four initially nondisabled, community‐living persons aged 70 and older. MEASUREMENTS: An assessment of seven potential frailty criteria (slow gait speed, low physical activity, weight loss, exhaustion, weakness, cognitive impairment, and depressive symptoms) was completed at baseline and every 18 months for 72 months. Participants were followed with monthly telephone interviews for up to 96 months to determine the occurrence of chronic disability, long‐term nursing home (NH) stays, injurious falls, and death. RESULTS: In analyses adjusted for age, sex, race, education, number of chronic conditions, and the presence of the other potential frailty criteria, three of the five Fried criteria (slow gait speed, low physical activity, and weight loss) were independently associated with chronic disability, long‐term NH stays, and death. Slow gait speed was the strongest predictor of chronic disability (hazard ratio (HR)=2.97, 95% confidence interval (CI)=2.32–3.80) and long‐term NH stay (HR=3.86, 95% CI=2.23–6.67) and was the only significant predictor of injurious falls (HR=2.19, 95% CI=1.33–3.60). Cognitive impairment was also associated with chronic disability (HR=1.82, 95% CI=1.40–2.38), long‐term NH stay (HR=2.64, 95% CI=1.75–3.99), and death (HR=1.54, 95% CI=1.13–2.10), and the magnitude of these associations was comparable with that of weight loss. CONCLUSION: The results of this study provide strong evidence to support the use of slow gait speed, low physical activity, weight loss, and cognitive impairment as key indicators of frailty while raising concerns about the value of self‐reported exhaustion and muscle weakness.     

Recovery of Activities of Daily Living in Older Adults After Hospitalization for Acute Medical Illness

OBJECTIVES: To compare functional outcomes in the year after discharge for older adults discharged from the hospital after an acute medical illness with a new or additional disability in their basic self‐care activities of daily living (ADL) (compared with preadmission baseline 2 weeks before admission) with those of older adults discharged with baseline ADL function and identify predictors of failure to recover to baseline function 1 year after discharge. DESIGN: Observational. SETTING: Tertiary care hospital, community teaching hospital. PARTICIPANTS: Older (aged ≥70) patients nonelectively admitted to general medical services (1993–1998). MEASUREMENTS: Number of ADL disabilities at preadmission baseline and 1, 3, 6, and 12 months after discharge. Outcomes were death, sustained decline in ADL function, and recovery to baseline ADL function at each time point. RESULTS: By 12 months after discharge, of those discharged with new or additional ADL disability, 41.3% died, 28.6% were alive but had not recovered to baseline function, and 30.1% were at baseline function. Of those discharged at baseline function, 17.8% died, 15.2% were alive but with worse than baseline function, and 67% were at their baseline function (P<.001). Of those discharged with new or additional ADL disability, the presence or absence of recovery by 1 month was associated with long‐term outcomes. Age, cardiovascular disease, dementia, cancer, low albumin, and greater number of dependencies in instrumental ADLs independently predicted failure to recover. CONCLUSION: For older adults discharged with new or additional disability in ADL after hospitalization for medical illness, prognosis for functional recovery is poor. Rehabilitation interventions of longer duration and timing than current reimbursement allows, caregiver support, and palliative care should be evaluated.     

Performance Measures Predict Onset of Activity of Daily Living Difficulty in Community‐Dwelling Older Adults

OBJECTIVES: To assess the predictive value of five performance‐based measures for the onset of difficulty in activities of daily living (ADLs). DESIGN: A prospective cohort study; home visits every 6 months for 18 months. SETTING: Community‐based. PARTICIPANTS: Community‐dwelling older adults, n=110, (mean age 80.3±7.0; range 67–98) who reported no difficulty in basic ADLs. MEASUREMENTS: The Short Physical Performance Battery (SPPB), gait speed, Berg Balance Scale (BBS), grip strength, and Timed Up and Go Test (TUG) were evaluated at baseline. Seven ADL items were assessed at baseline and 6, 12, and 18 months. The onset of ADL disability was self‐report of difficulty in any of the seven ADL items. Logistic regression models were fitted for each of the physical performance measures to predict onset of ADL difficulty at 6, 12, and 18 months. RESULTS: After controlling for age, comorbid conditions, and sex, the BBS was the most consistent and best predictor for the onset of ADL difficulty over an 18‐month period (6 months, c‐statistic=0.725, (95% confidence interval (CI)=0.60–0.85; 12 months, c‐statistic=0.840 95% CI=0.75, 0.93; 18 months, c‐statistic=0.821, 95% CI=0.71, 0.93). The SPPB showed excellent predictive value for the onset of difficulty at 12 months. Ninety‐five, 89, and 75 older adults completed the 6, 12, and 18‐month follow‐up visits, respectively. CONCLUSION: BBS, followed by SPPB, TUG, gait speed, and grip strength, were predictive of the onset of ADL difficulty over an 18‐month period in community‐dwelling older adults. Screening nondisabled older adults with simple performance tests could allow clinicians to identify those at risk for ADL difficulty and may help to detect early functional decline.     

Hospitalization in Community‐Dwelling Persons with Alzheimer's Disease: Frequency and Causes

OBJECTIVES: To examine the rates of and risk factors for acute hospitalization in a prospective cohort of older community‐dwelling patients with Alzheimer's disease (AD). DESIGN: Longitudinal patient registry. SETTING: AD research center. PARTICIPANTS: Eight hundred twenty‐seven older persons with AD. MEASUREMENTS: Acute hospitalization after AD research center visit was determined from a Medicare database. Risk factor variables included demographics, dementia‐related, comorbidity and diagnoses and were measured in interviews and according to Medicare data. RESULTS: Of the 827 eligible patients seen at the ADRC during 1991 to 2006 (median follow‐up 3.0 years), 542 (66%) were hospitalized at least once, and 389 (47%) were hospitalized two or more times, with a median of 3 days spent in the hospital per person‐year. Leading reasons for admission were syncope or falls (26%), ischemic heart disease (17%), gastrointestinal disease (9%), pneumonia (6%), and delirium (5%). Five significant independent risk factors for hospitalization were higher comorbidity (hazard ratio (HR)=1.87, 95% confidence interval (CI)=1.57–2.23), previous acute hospitalization (HR=1.65, 95% CI=1.37–1.99), older age (HR=1.51, 95% CI=1.26–1.81), male sex (HR=1.27, 95% CI=1.04–1.54), and shorter duration of dementia symptoms (HR=1.26, 95% CI=1.02–1.56). Cumulative risk of hospitalization increased with number of risk factors present at baseline: 38% with zero factors, 57% with one factor, 70% with two or three factors, and 85% with four or five factors (P_trend<.001). CONCLUSION: In a community‐dwelling population with generally mild AD, hospitalization is frequent, occurring in two‐thirds of participants over a median follow‐up time of 3 years. With these results, clinicians may be able to identify dementia patients at high risk for hospitalization.     

Cognitive impairment,depressive symptoms,and functional decline in older people

OBJECTIVES: Although cognitive impairment and depressive symptoms are associated with functional decline, it is not understood how these risk factors act together to affect the risk of functional decline. The purpose of this study is to determine the relative contributions of cognitive impairment and depressive symptoms on decline in activity of daily living (ADL) function over 2 years in an older cohort. DESIGN: Prospective cohort study. SETTING: A U.S. national prospective cohort study of older people, Asset and Health Dynamics in the Oldest Old. PARTICIPANTS: Five thousand six hundred ninety-seven participants (mean age 77, 64% women, 86% white) followed from 1993 to 1995. MEASUREMENTS: Cognitive impairment and depressive symptoms were defined as the poorest scores: 1.5 standard deviations below the mean on a cognitive scale or 1.5 standard deviations above the mean on validated depression scales. Risk of functional decline in participants with depressive symptoms, cognitive impairment, and both, compared with neither risk factor, were calculated and stratified by baseline dependence. Analyses were adjusted for demographics and comorbidity. RESULTS: Eight percent (n = 450) of subjects declined in ADL function. In participants who were independent in all ADLs at baseline, the relative risk (RR) of 2-year functional decline was 2.3 (95% confidence interval (CI) = 1.7-3.1) for participants with cognitive impairment, 1.9 (95% CI = 1.3-2.6) for participants with depressive symptoms, and 2.4 (95% CI = 1.4-3.7) for participants with cognitive impairment and depressive symptoms. In participants who were dependent in one or more ADLs at baseline, RR of 2-year functional decline was 1.9 (95% CI = 1.2-2.8) for participants with cognitive impairment, 0.6 (95% CI = 0.3-1.3) for participants with depressive symptoms, and 1.5 (95% CI = 0.8-2.6) for participants with cognitive impairment and depressive symptoms. CONCLUSIONS: In participants with no ADL dependence at baseline, cognitive impairment and depressive symptoms are risk factors for decline, but that, in participants with dependence in ADL at baseline, cognitive impairment, but not depressive symptoms, is a risk factor for additional decline.     

Functional recovery after hip fracture: the combined effects of depressive symptoms, cognitive impairment, and delirium

OBJECTIVES: To measure the prevalence of depressive symptoms, cognitive impairment, and delirium in patients with hip fracture and to estimate their effect on functional recovery, institutionalization, and death after surgical repair.
DESIGN: Prospective cohort.
SETTING: Hospital, follow-up to community and nursing home.
PARTICIPANTS: One hundred twenty-six patients aged 65 and older admitted for hip fracture repair.
MEASUREMENTS: Baseline measurements: Mini-Mental State Examination, Blessed Dementia Rating Scale, Geriatric Depression Scale, prefracture activities of daily living (ADLs), ambulatory status. The Confusion Assessment Method was used to diagnose in-hospital delirium. One- and 6-month outcomes were ADL decline, loss of ambulation, and new nursing home placement or death.
RESULTS: Twenty-two percent of patients had one cognitive or mood disorder, 30% had two, and 7% had three. At 1 month, each cognitive or mood disorder was independently associated with one or more adverse outcome. Considered together, each additional cognitive or mood disorder was associated with greater odds of 1 month outcomes (ADL decline: odds ratio (OR)=1.8, 95% confidence interval (CI)=1.1–2.9; decline in ambulation: OR=1.8, 95% CI=1.1–3.0; nursing home placement or death: OR=3.9, 95% CI=1.9–8.1).
CONCLUSION: Cognitive and mood disorders were common in elderly hip fracture patients and were associated with greater risk of poor outcomes, both independently and in combination. Recognition and treatment of these conditions may reduce adverse outcomes in this vulnerable population.     

Correlates of Urinary Incontinence in Community‐Dwelling Older Latinos

The prevalence of urinary incontinence (UI) has varied in the literature and is reflective of the definition and sampling methodologies used, as well as the age, ethnicity, and sex being studied. The aim of the current study was to measure the prevalence and correlates of UI in a sample of 572 older Latinos participating in Caminemos, a trial of a behavioral intervention to increase walking. Participants completed an in‐person survey and physical performance measures. UI was measured using the International Consultation on Incontinence item: “How often do you leak urine?” Potential correlates of UI included sociodemographic variables, body mass index, smoking, physical activity, medical comorbidity, physical performance, activity of daily living (ADL) impairment, use of assistive ambulatory devices, health‐related quality of life (HRQoL), and depressive symptoms. The prevalence of UI in this sample was 26.9%. Women were more likely to report UI, as were those who were less physically active; used assistive ambulatory devices; and had depressive symptoms, greater medical comorbidity, worse physical performance, greater ADL impairment, worse cognitive function, and lower HRQoL. Multivariate logistic regression revealed that medical comorbidity was independently associated with higher rates of UI (odds ratio (OR)=1.66, 95% confidence interval (CI)=1.30–2.12), whereas better cognitive function (OR=0.73, 95% CI=0.57–0.93) and higher weighted physical activity scores (OR=0.77, 95% CI=0.60–0.98) were independently associated with lower rates of UI. UI is highly prevalent but not ubiquitous among community‐residing older Latinos, suggesting that UI is not an inevitable consequence of aging. Future studies should examine whether interventions that decrease comorbidity and cognitive decline and increase physical activity improve continence status.     

Heart Failure and Incident Late‐Life Depression

OBJECTIVES: To assess whether heart failure (HF) increases the risk of developing depression and whether the use of loop diuretics in persons with HF alters this risk. DESIGN: Population‐based cohort study between 1993 and 2005. SETTING: Ommoord, a district of Rotterdam, the Netherlands. PARTICIPANTS: Five thousand ninety‐five older adults free of depression at baseline. MEASUREMENTS: Detailed information on HF and depression was collected during examination rounds and through continuous monitoring of medical and pharmaceutical records. HF was defined according to the criteria of the European Society of Cardiology. Depressive episodes were categorized as clinically relevant depressive symptoms and depressive syndromes, including major depressive disorders defined according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, criteria. Hazard ratios (HRs) were calculated using multivariate Cox proportional hazard regression. RESULTS: HF was associated with greater risk of depressive symptoms and syndromes (HR=1.41, 95% CI=1.03–1.94) and depressive syndromes only (HR=1.66, 95% CI=1.09–2.52). In participants with HF, the use of loop diuretics was associated with a lower risk of depressive symptoms and syndromes (HR=0.46, 95% CI=0.22–0.96) and depressive syndromes only (HR=0.41, 95% CI=0.16–1.00). CONCLUSION: HF is an independent risk factor for incident depression in elderly persons. Patient with HF require careful follow‐up to monitor and prevent the onset of depression. Effective treatment of the debilitating symptoms of HF may prevent depression.     

Development of a Frailty Index for Patients with Coronary Artery Disease

OBJECTIVES: To construct a brief frailty index for older patients with coronary artery disease (CAD) undergoing coronary angiography that includes physical, cognitive, and psychosocial criteria and accurately predicts future disability and decline in health‐related quality of life (HRQL). DESIGN: Prospective cohort. SETTING: An urban tertiary care hospital in Alberta, Canada. PARTICIPANTS: Three hundred seventy‐four patients aged 60 and older (73% male) undergoing cardiac catheterization for CAD between October 2003 and May 2007. MEASUREMENTS: Potential frailty criteria examined at baseline (before the procedure) included measures of balance, gait speed, cognition, self‐reported health, body mass index (BMI), depressive symptoms, and living alone. The outcomes assessed over 1 year were dependency in activities of daily living (ADLs) and HRQL. RESULTS: The five best‐fitting criteria from regression analyses for ADL decline were poor balance (risk ratio (RR)=2.4, 95% confidence interval (CI)=1.4–4.0), abnormal BMI (RR=1.8, 95% CI=1.1–3.0), impaired Trail‐Making Test Part B performance (RR=2.3, 95% CI=1.3–4.2), depressive symptoms (RR=1.8, 95% CI=1.1–3.1), and living alone (RR=2.2, 95% CI=1.3–3.8). Using the five criteria as separate variables or as a summary frailty index yielded identical areas under the receiver operating characteristic curve (0.76, 95% CI=0.66–0.84). Patients with three or more criteria (vs none) were at statistically significant greater risk for increased disability (RR=10.4, 95% CI=4.4–24.2) and decreased HRQL (RR=4.2, 95% CI=2.3–7.4) after 1 year. CONCLUSION: This brief frailty index including physical, cognitive, and psychosocial criteria was predictive of increased disability and decreased HRQL at 1 year in older patients with CAD undergoing angiography. This index may have applications for clinicians and researchers but requires further validation.     

Prevalence and outcomes of low mobility in hospitalized older patients

OBJECTIVES: To estimate the prevalence of different levels of mobility in a hospitalized older cohort, to measure the degree and rate of adverse outcomes associated with different mobility levels, and to examine the physician activity orders and documented reasons for bedrest in the lowest mobility group. DESIGN: A prospective cohort study. SETTING: An 800-bed university teaching hospital. PARTICIPANTS: Four hundred ninety-eight hospitalized medical patients, aged 70 and older. MEASUREMENTS: Using average mobility level, scored from 0 to 12, the low-mobility group was defined as having a score of 4 or less, intermediate as a score of higher than 4 to 8, and high as higher than 8. Outcomes were functional decline, new institutionalization, death, and death or new institutionalization. RESULTS: Low and intermediate levels of mobility were common, accounting for 80 (16%) and 157 (32%) study patients, respectively. Overall, any activity of daily living (ADL) decline occurred in 29%, new institutionalization in 13%, death in 7%, and death or new institutionalization in 22% of patients in this cohort. When compared with the high mobility group, the low and intermediate groups were associated with the adverse outcomes in a graded fashion, even after controlling for multiple confounders. The low-mobility group had an adjusted odds ratio (OR) of 5.6 (95% confidence interval (CI)=2.9-11.0) for ADL decline, 6.0 (95% CI=2.5-14.8) for new institutionalization, 34.3 (95% CI=6.3-185.9) for death, and 7.2 (95% CI=3.6-14.4) for death or new institutionalization. The intermediate group had adjusted ORs of 2.5 (95% CI=1.5-4.1), 2.9 (95% CI=1.4-6.0), 10.1 (95% CI=1.9-52.9), and 3.3 (95% CI=1.8-5.9) for ADL decline, new institutionalization, death, and death or new institutionalization, respectively. Bedrest was ordered at some point during hospitalization in 165 (33%) patients. For most patients, mobility was limited involuntarily (bedrest orders), and almost 60% of bedrest episodes in the lowest mobility group had no documented medical indication. CONCLUSION: Low mobility and bedrest are common in hospitalized older patients and are important predictors of adverse outcomes. This study demonstrated that the adverse outcomes associated with low mobility and bedrest may be viewed as iatrogenic events leading to complications, such as functional decline.     

Pain, Functional Limitations, and Aging

OBJECTIVES: To examine the relationship between functional limitations and pain across a spectrum of age, ranging from mid life to advanced old age. DESIGN: Cross‐sectional study. SETTING: The 2004 Health and Retirement Study (HRS), a nationally representative study of community‐living persons aged 50 and older. PARTICIPANTS: Eighteen thousand five hundred thirty‐one participants in the 2004 HRS. MEASUREMENTS: Participants who reported that they were often troubled by pain that was moderate or severe most of the time were defined as having significant pain. For each of four functional domains, subjects were classified according to their degree of functional limitation: mobility (able to jog 1 mile, able to walk several blocks, able to walk one block, unable to walk one block), stair climbing (able to climb several flights, able to climb one flight, not able to climb a flight), upper extremity tasks (able to do 3, 2, 1, or 0), and activity of daily living (ADL) function (able to do without difficulty, had difficulty but able to do without help, need help). RESULTS: Twenty‐four percent of participants had significant pain. Across all four domains, participants with pain had much higher rates of functional limitations than subjects without pain. Participants with pain were similar in terms of their degree of functional limitation to participants 2 to 3 decades older. For example, for mobility, of subjects aged 50 to 59 without pain, 37% were able to jog 1 mile, 91% were able to walk several blocks, and 96% were able to walk one block without difficulty. In contrast, of subjects aged 50 to 59 with pain, 9% were able to jog 1 mile, 50% were able to walk several blocks, and 69% were able to walk one block without difficulty. Subjects aged 50 to 59 with pain were similar in terms of mobility limitations to subjects aged 80 to 89 without pain, of whom 4% were able to jog 1 mile, 55% were able to walk several blocks, and 72% were able to walk one block without difficulty. After adjustment for demographic characteristics, socioeconomic status, comorbid conditions, depression, obesity, and health habits, across all four measures, participants with significant pain were at much higher risk for having functional limitations (adjusted odds ratio (AOR)=2.85, 95% confidence interval (CI)=2.20–3.69, for mobility; AOR=2.84, 95% CI=2.48–3.26, for stair climbing; AOR=3.96, 95% CI=3.43–4.58, for upper extremity tasks; and AOR=4.33; 95% CI=3.71–5.06, for ADL function). CONCLUSION: Subjects with pain develop the functional limitations classically associated with aging at much earlier ages.     

Contribution of multiple chronic conditions to universal health outcomes

OBJECTIVES: To determine the relative effect of five chronic conditions on four representative universal health outcomes. DESIGN: Cross‐sectional. SETTING: Cardiovascular Health Study. PARTICIPANTS: Five thousand two hundred and ninety‐eight community‐living participants aged 65 and older. MEASUREMENTS: Multiple regression and Cox models were used to determine the effect of heart failure (HF), chronic obstructive pulmonary disease (COPD), osteoarthritis, depression, and cognitive impairment on self‐rated health, 12 basic and instrumental activities of daily living (ADLs and IADLs), six‐item symptom burden scale, and death. RESULTS: Each condition adversely affected self‐rated health (P<.001) and ADLs and IADLs (P<.001). For example, persons with HF performed 0.70±0.08 fewer ADLs and IADLs than those without; persons with depression and persons with cognitive impairment performed 0.59±0.04 and 0.58±0.06 fewer activities, respectively, than those without these conditions. Depression, HF, COPD, and osteoarthritis were associated with 1.18±0.04, 0.40±0.08, 0.40±0.05, and 0.57±0.03 more symptoms, respectively, in individuals with these conditions than in those without. HF (hazard ratio (HR)=2.84, 95% confidence interval (CI)=1.97–4.10), COPD (2.62, 95% CI=1.94–3.53), cognitive impairment (2.05, 95% CI=1.47–2.85), and depression (1.47, 95% CI=1.08–2.01) were each associated with death within 2 years. Several paired combinations of conditions had synergistic effects on ADLs and IADLs. For example, individuals with HF plus depression performed 2.0 fewer activities than persons with neither condition, versus the 1.3 fewer activities expected from adding the effects of the two conditions together. CONCLUSION: Universal health outcomes may provide a common metric for measuring the effects of multiple conditions and their treatments. The varying effects of the conditions across universal outcomes could inform care priorities.