Disability-free life expectancy: a cross-national comparison of six longitudinal studies on aging. The CLESA project

Disability-free life expectancy (DFLE) was compared in six countries taking part in the Cross-national Determinants of Quality of Life and Health Services for the Elderly (CLESA) project. Data from six existing longitudinal studies were used: TamELSA (Tampere, Finland), CALAS (Israel), ILSA (Italy), LASA (The Netherlands), Aging in Leganés (Leganés, Spain) and SATSA (Sweden). A harmonised four-item disability measure (bathing, dressing, transferring, toileting) was used to calculate DFLE; the harmonised measure was dichotomised into independent in all four activities vs. dependent in at least one. Calculations of DFLE were made using the multistate life table approach and the IMaCh program (INED/EuroREVES, ) for subjects aged 65–89 years. Prevalence ratios of disability varied significantly across countries, with Italy and Leganés having the highest percentages among men and among women, respectively, while The Netherlands presented the lowest for both sexes. At 75 years of age the estimated total life expectancy among men ranged from 7.8 years in Tampere and Sweden to 9.0 years in Israel; among women it ranged from 9.5 years in Israel to 11.6 years in Italy. For both sexes Italy showed the lowest total life expectancy without disability (72% among men, 61% among women) and Sweden the highest (89% among men and 71% among women). The results yielded a north/south gradient, with residents in Tampere, The Netherlands and Sweden expected to spend a higher percentage of their lives without disability than those in Italy, Israel and Leganés.     

Self-rated health and depressive symptoms in older adults: A growth mixture modeling approach

ObjectiveSelf-Rated Health (SRH) and depressive symptoms are important indicators of global quality of life in older adults. Prior research suggests associations between SRH and depressive symptoms. The current study assessed latent groups in levels and trajectories of these two subjective health indicators and how the latent groups relate to each other.MethodsParticipants from the Australian Longitudinal Study of Aging (N = 2,087, ages 65+) were assessed over six waves of data collection, spanning eight years.ResultsGrowth Mixture Models were run for SRH and depressive symptoms, each yielded three latent groups with similar patterns: for both SRH and depressive symptoms two groups differing in their level with worsening status over time, and a third stable, but poorer functioning group. Analysis of the assignment of the latent groups revealed a consistent pattern for the majority, but some people were high in depression and high in SRH and some were low in depression and low in SRH.ConclusionsSRH and depressive symptoms yielded both three latent groups whose combination supported the expected assignment for the majority and an unexpected assignment for some people. This may be a result of a protective factor existing for one variable but not the other.     

Key elements composing self-rated health in older adults: a comparative study of 11 European countries

Self-rated health (SRH) is a multidimensional measure, predictive of morbidity and mortality. Comparative studies of determinants, however, are rare due to a lack of comparable cross-national data. This paper contributes towards filling in this gap, using data for persons aged 50 or higher in 11 European countries from the SHARE study (2004). The analysis aims at identifying key elements composing SRH using multinomial logistic regression models. In addition, the homogeneity of associations across populations is assessed. The findings indicate that education, depression, chronic conditions, mobility difficulties, somatic symptoms and levels of physical activity constitute important components of SRH; ADLs and obesity, on the other hand, are not significant and IADLs are important only in a few countries. All these associations point to the expected direction and are homogeneous across countries. However, demographic factors, age and gender, though significant in many countries have divergent associations. Effects of smoking also differentiate between southern and northern Europe.     

Self-rated health (SRH) and socioeconomic position (SEP) among urban home-dwelling older adults

The main purpose of this study was to examine the association of education and adequacy of income with self-rated health (SRH) among home-dwelling older people aged 75 and over living in the urban area. A cross-sectional survey from 2008 was used to study 1395 older adults aged 75 and over living in one of the central areas of the city center of Helsinki, the capital of Finland. Associations of SRH with, education and adequacy of income were tested using ordinal regression model. Those with a lower level of education had higher level of poor health. Self-assessed adequacy of income had also a strong association with SRH. For the oldest respondents this association was even stronger than the association between education and SRH. Subjective evaluation of financial situation should be used as a key indicator of socioeconomic position (SEP) in studies examining inequalities in health especially among older adults.     

Self-rated health and its association with all-cause mortality of older adults in Poland: The PolSenior project

ObjectivesPredictive effect of self-rated health (SRH) on mortality in older adults has been observed. The purpose of the study was to analyze this association in Poles aged 65+.MethodsData were obtained from the nationwide, multidisciplinary PolSenior project, conducted in a representative sample of older population. The study group comprised 4049 respondents (48.0% women) without significant cognitive deficit. SRH was measured using Visual Analog Scale. The analysis included selected socio-economic, health status and life-style factors. Mortality data were retrieved from the state registry.ResultsDuring 5-year period, 414 women (21.4%) and 672 men (31.8%) have died, including 17.5% of women and 26.6% of men with good, 21.6% and 32.9% with fair, 36.2% and 55.3% with poor SRH, respectively. Kaplan-Meier survival curves for SRH revealed significant differences for both genders. Univariate Cox regression analysis revealed significant hazard ratios (HRs) for mortality among women and men with poor compared to good SRH [2.48 (1.83–3.37); 2.62 (2.04–3.36), respectively] and those with fair compared to good SRH [1.29 (1.03–1.60); 1.29 (1.10–1.52), respectively]. Age-adjusted HRs for mortality were significant between groups with poor and good SRH [women: 1.98 (1.46–2.68), men: 2.06 (1.60–2.64)]. Multivariate Cox proportional hazard regression model including revealed significant HRs for mortality between women with poor and good SRH [1.67 (1.06–2.64)].ConclusionsSRH was associated with mortality in both genders. After adjustment for age, this relationship was maintained in respondents with poor compared to good SRH. Inclusion of potential confounders demonstrated that SRH was an independent predictor of mortality only in women.     

Anxiety about aging,resilience and health Status among Chinese older adults: Findings from Honolulu and Wuhan

A growing body of literature found that anxiety about aging is related to health and well-being of older adults. However, very few studies have been conducted on Chinese older adults residing in different countries and examined the role of resilience. Using the Pearlin’s Stress Process Model, this study aims to fill in this gap by examining the relationship between anxiety about aging as the stressor and health status among Chinese older adults living in Honolulu, the United States (N = 292) and Wuhan, China (N = 532). The survey data were collected through June 2017 to September 2018, using snowball and convenience sampling strategy. The moderating role of resilience on the focal relationship is also explored. Results showed that for both samples, the negative relationship between anxiety about aging and self-rated health was significantly moderated by resilience (18 % and 13 %, respectively), implying the stress-buffering role of resilience. Although both mean levels of resilience and anxiety about aging were lower for the Honolulu sample, the moderating effect appeared to be stronger, implying that older adults in the Honolulu sample might rely more on psychological resources such as resilience in coping with stressors, compared with their counterparts in Wuhan. However, the moderating effect of resilience did not work for the association between anxiety about aging and number of chronic conditions for both samples. Our findings suggest that future research needs to take into account both social and psychological resources when examining anxiety about aging and health status among Chinese older adults residing in different cultural contexts.     

Self-rated health trajectories and mortality among older adults

OBJECTIVES: For this article, we evaluated whether measures of prior self-rated health (SRH) trajectories had associations with subsequent mortality that were independent of current SRH assessment and other covariates. METHODS: We used multivariable logistic regression that incorporated four waves of interview data (1993, 1995, 1998, and 2000) from the Asset and Health Dynamics Among the Oldest Old Survey in order to predict mortality during 2000-2002. We defined prior SRH trajectories for each individual based on the slope estimated from a simple linear regression of their own SRH between 1993 and 1998 and the variance around that slope. In addition to SRH reported in 2000, other covariates included in the mortality models reflected health status, health-related behaviors, and individual resources. RESULTS: Among the 3,129 respondents in the analytic sample, SRH in 2000 was significantly (p <.0001) associated with mortality, but the measures of prior SRH trajectories were not. Prior SRH trajectory was, however, a significant determinant of current SRH. We observed significant independent associations with mortality for age, sex, education, lung disease, and having ever smoked. DISCUSSION: Although measures of prior SRH trajectories did not have significant direct associations with mortality, they did have important indirect effects via their influence on current SRH.     

Gender,self-rated health and functional decline among community-dwelling older adults

ObjectiveThis paper examines the association between self-rated health (SRH) and functional decline (FD) in older Ghanaian cohorts and investigates whether the effect differs by gender and also modified by marital status.MethodsThe study used cross-sectional survey data (N = 1200) from an Aging, Health, Psychological Wellbeing and Health-seeking Behavior Study (AHPWHB) study conducted in between August 2016 and January 2017. A four-level gendered-stratified logit modeling estimated the SRH-FD association and the interaction terms.ResultsOverall, 23% of male respondents and 34% of women revealed significant FD (p < 0.001). The fully-adjusted model showed that SRH status was a strong predictor of FD across genders but the effect was most pronounced among men. Compared with excellent/very good SRH, fair and poor SRH (β = 0.160; p < 0.05) and (β = 1.700; p < 0.001) for women and (β = 2.202; p < 0.001) and (β= 2.356; p < 0.001) for men respectively were significantly associated with increased FD. However, good (β = − 1.760; p < 0.001), fair (β = − 2.800; p < 0.001) and poor SRH (β = −2.088; p < 0.001) decreased FD if an older woman was married compared with unmarried women with excellent/very good SRH.ConclusionThe strength of SRH-FDs association largely differed with gender and also moderated by marital status for women. Improving the SRH and marital quality could be protective of functional abilities, independence and quality of life for older people.     

Association of physical performance and self-rated health with multimorbidity among older adults: Results from a nationwide survey in Japan

ObjectivesTo examine the association of physical performance measures and self-rated health with multimorbidity among older Japanese adults aged ≥60 years using cross-sectional data from a nationwide longitudinal survey.MethodsUsing respondents’ self-reported data from the 2012 National Survey of the Japanese Elderly, we analyzed multimorbidity involving nine major chronic diseases (heart disease, arthralgia, hypertension, diabetes, stroke, cataract, cancer, respiratory disease, and low back pain). Respondents who reported having two or more of these diseases were identified as having multimorbidity. Multivariate logistic regression analysis was used to examine if physical performance (grip strength and walking speed) and self-rated health were independently associated with multimorbidity after adjusting for potential confounders (e.g., demographic, physiological, and lifestyle-related variables).ResultsThe responses of 2525 participants who responded to the survey by themselves (i.e., without proxies) were analyzed (response rate: 57.9%). Among the chronic diseases examined, hypertension had the highest prevalence (44.1%), followed by low back pain (25.7%) and cataract (24.7%). Approximately 44.4% of the respondents had multimorbidity. The regression analysis revealed that multimorbidity was significantly associated with both poor grip strength (P = 0.006) and self-rated health (P < 0.001), but not with walking speed (P = 0.479).ConclusionsMultimorbidity is prevalent in older Japanese adults, and poor grip strength and self-rated health were independently and significantly associated with multimorbidity. Health assessments that include these indicators may provide insight into the health status patterns of older adults with multimorbidity and inform the development of health management strategies.     

Diabetes, functional ability, and self-rated health independently predict hospital admission within one year among older adults: A population based cohort study

The aims of the present study were to determine the relationships among diabetes, functional ability and self-rated health, and whether they predict subsequent hospital admission in a representative sample of older adults. We conducted a prospective study on persons aged 65 and above (N = 2064) who participated in the National Health Interview Survey in Taiwan, 2001. A total of 1609 participants consented to data linkage and were successfully linked to 2002 National Health Insurance claims data. Functional ability was defined as the ability to perform six activities of daily living (ADL). After adjustment for potential confounders, older adults with diabetes were significantly more likely to have ADL limitation and worse self-rated health and had an increased risk of hospitalization. Diabetes, ADL limitation and worse self-rated health all independently predicted hospital admission within one year. Older adults with diabetes, ADL limitation and worse self-rated health are important target populations for interventions aimed at preventing hospitalization.     

Self-rated health and mortality risk in relation to gender and education: a time-dependent covariate analysis

This study examines the relations between self-rated health (SRH) at baseline, SRH as a time-dependent covariate (TDC), and mortality by gender and education in a community-dwelling older population in Spain. The data used are from the longitudinal study “Aging in Leganes”, launched in 1993, carried out in a community-dwelling representative sample (n = 1,560) of the older population of Leganes (Spain). Mortality was assessed in 2008. Proportional regression models were fitted to examine the association between mortality and baseline SRH, and SRH as a TDC among subjects aged 65–85 at baseline. The multivariate analyses were stratified by gender and education and adjusted for sociodemographic factors, smoking and physical activity, physical and mental morbidity, and ADL disability. SRH and SRH as a TDC were significant predictors of mortality in men and in people with some education, but not in women or in illiterate persons. SRH and declines in SRH were associated with increased mortality risk in older men and in those who can read and write in this Mediterranean population. Given current improvements in education and decreasing gender inequality, health professionals in Spain should pay attention to both current SRH and declines in SRH in their patients regardless of gender and literacy.     

Self-rated health status as a predictor of death, functional and cognitive impairment: a longitudinal cohort study

Understanding the prognostic capacity of a simple measure of self-rated health (SRH) by older people becomes increasingly important as the population ages. SRH has been shown to predict survival, functional status and service use. The relationship with cognitive impairment has not been widely investigated. This paper investigates SRH as a predictor of death, functional impairment (inability to perform activities of daily living) and cognitive impairment (MMSE < 18) over a 10-year follow-up of participants in the MRC Cognitive Function and Ageing Study. A stratified random sample of 13,004 people aged 65 or over resident in five areas in England and Wales were interviewed. Analysis used data from interviews at baseline, 2, 6 and 10 year follow-up. Hazard ratios for risk of death, functional and cognitive impairment were estimated, unadjusted and adjusted for potential confounding baseline factors. Of the 13,004 participants recruited, 6,882 had died by 10 years and 1,252 and 481 new cases of functional and cognitive impairment respectively were recorded. SRH was associated with a higher risk of death, functional and cognitive impairment. The associations remained after adjustment for age, gender, functional ability and MMSE at baseline: comparing those who rated their health as excellent and good, hazard ratios for risk of death, functional and cognitive impairment were 0.8 (95% CI 0.8–0.9), 0.6 (95% CI 0.5–0.7) and 0.7(95% CI 0.5–0.9), respectively. In-depth qualitative study designs are needed to investigate why the meaning older people give to their health status predicts long-term outcomes.     

Self-rated health (SRH) as a predictor of mortality in elderly men living in a medium-size city in Brazil

The objective was to examine the role of SRH as a predictor of mortality in elderly men in a medium-size Brazilian city. In 2 years of follow-up, 120 deaths occurred in the study population, with the following main causes: cardiovascular diseases (40%), neoplasms (22.5%), and respiratory diseases (10%). In practically all of the target variable strata, elderly men with fair or poor SRH showed a higher risk of dying as compared to those with excellent or good SRH. In the final model, the variables fair/poor SRH (hazard risk = HR = 1.88, 95% confidence interval = 95%CI = 1.29-2.72), age (HR = 1.05, 95%CI = 1.03-1.08), public health system as the regular source of care (HR = 1.69, 95%CI = 1.10-2.60), current smoking (HR = 1.94, 95%CI = 1.24-3.04), and acute cardiovascular disease (HR = 1.62, 95%CI = 1.06-2.47) were associated with mortality. We concluded that SRH proved to be a predictive variable for mortality in elderly men after 2 years of follow-up, with nearly a twofold risk of death among men that reported fair or poor health, after adjusting for age, regular use of the public health system, current smoking, and acute cardiovascular disease. Given the importance of poor SRH for predicting mortality in elderly men, health services should incorporate this indicator into health assessments in this population.     

Self-rated health among American adolescents with type 1 diabetes in the T1D Exchange Clinic Registry

Background

The goal of this study was to examine the self-rated health (SRH) of adolescents with type 1 diabetes (T1D).

Linguistic disparities in health care access and health status among older adults

BACKGROUND: English proficiency may be important in explaining disparities in health and health care access among older adults. SUBJECTS: Population-based representative sample (N=18,659) of adults age 55 and older from the 2001 California Health Interview Survey. METHODS: We examined whether health care access and health status vary among older adults who have limited English proficiency (LEP), who are proficient in English but also speak another language at home (EP), and who speak English only (EO). Weighted bivariate and multivariate survey logit analyses were conducted to examine the role of language ability on 2 aspects of access to care (not having a usual source of care, delays in getting care) and 2 indicators of health status (self-rated general health and emotional health). RESULTS: Limited-English proficient adults were significantly worse off (1.68 to 2.49 times higher risk) than EO older adults in 3 of our 4 measures of access to care and health status. Limited-English proficient older adults had significantly worse access to care and health status than EP older adults except delays in care. English proficient adults had 52% increased risk of reporting poorer emotional health compared with EO speakers. CONCLUSIONS: Provision of language assistance services to patients and training of providers in cultural competence are 2 means by which health care systems could reduce linguistic barriers, improve access to care, and ultimately improve health status for these vulnerable populations.     

Understanding causal associations between self-rated health and personal relationships in older adults: A review of evidence from longitudinal studies

Background

As we age we experience many life changes in our health, personal relationships, work, or home life which can impact on other aspects of our life. There is compelling evidence that how we feel about our health influences, or is influenced by, the personal relationships we experience with friends and relatives. Currently the direction this association takes is unclear.

Aim

To assess the level of published evidence available on causal links between self-rated health and personal relationships in older adults.

Methods

MEDLINE, CINAHL, and PsycINFO searches from inception to June 2012 and hand searches of publication lists, reference lists and citations were used to identify primary studies utilizing longitudinal data to investigate self-rated health and personal relationships in older adults.

Results

Thirty-one articles were identified. Only three articles employed methods suitable to explore causal associations between changes in self-rated health and changes in personal relationships. Two of these articles suggested that widowhood leads to a reduction in self-rated health in the short term, while the remaining article suggested a causal relationship between self-rated health and negative emotional support from family or friends, but this was complex and mediated by self-esteem and sense of control.

Conclusion

While there is an abundance of longitudinal aging cohorts available which can be used to investigate self-rated health and personal relationships over time the potential for these databases to be used to investigate causal associations is currently not being recognized.