The social tariff of EQ-5D is not adequate to assess quality of life in patients with low back pain

Background

We compared the quality of life perceived by patients with non-specific low back pain with that predicted by the social tariff of the Spanish version of EQ-5D questionnaire.

Methods

For each health state of the EQ-5D, an adjusted tariff for patients with back pain was obtained using a linear regression model in which the linear effect of the three levels of response for each of the five domains of the EQ-5D was assumed. These coefficients were compared with those obtained for the general Spanish population. In another model, equal in structure to the standard “Dolan N” model, the linear effect of the five domains was not assumed.

Results

In 633 patients, 93 health states were recorded. Significant differences in the coefficients of self-care (p = 0.003) and the maximum level of severity in any dimension (p < 0.0001) were observed. The social tariff of the healthy population is different from the tariff of low back pain patients, with general population values being lower than those of patients, particularly in the 211 health states in which any dimension is at level 3. Weights of the different EQ-5D dimensions showed a non-linear effect on the patients’ quality of life.

Conclusion

Methods used to develop the social tariff for the Spanish version of EQ-5D were inadequate. In addition, this study shows that values given by the general population are different from those of low back pain patients, further confirming that the social tariff of EQ-5D should not be used with actual patients.     

Satisfaction with oncology care among patients with advanced cancer and their caregivers

Purpose

Satisfaction with care is important for quality assurance in oncology, but may differ between patients and caregivers. We aimed to assess satisfaction with cancer care in paired analyses of these groups, examine differences between them, and identify areas for potential intervention.

Methods

Patients with advanced cancer and their caregivers were recruited from 24 medical oncology outpatient clinics. Satisfaction with care was measured using the FAMCARE (caregivers) and FAMCARE-Patient (patients) scales. Quality of life (QOL) was measured with the Caregiver QOL Index-Cancer (caregivers) and FACIT-Sp (patients). The paired t test assessed differences in overall satisfaction and individual scores. In addition, scores were dichotomized into satisfied versus not satisfied, and McNemar’s test was used to assess differences. Multivariable linear regression analyses assessed predictors of patient and caregiver satisfaction, respectively.

Results

Satisfaction ratings in the 191 patient–caregiver pairs were high, but patients were more satisfied (p = 0.02). Both groups were least satisfied with information regarding prognosis and pain management. Caregivers were significantly less satisfied than patients regarding coordination of care (p = 0.001) and family inclusion in treatment/care decisions (p < 0.0001). In both groups, higher education was associated with lower satisfaction (p ≤ 0.01), while better QOL predicted greater satisfaction (p < 0.0001).

Conclusions

Communication regarding pain control and prognosis were identified as key areas for improvement. Caregivers seem to desire greater involvement in treatment decisions, though this must be balanced with patient autonomy.     

Work-related psychosocial and mechanical risk factors for neck/shoulder pain: a 3-year follow-up study of the general working population in Norway

Purpose

This study examines the impact of work-related psychosocial and mechanical exposure on the development of neck/shoulder pain in the general working population.

Methods

A randomly drawn cohort from the general population in Norway aged 18–66 was followed up for 3 years (n = 12,550, response rate = 67 %). Eligible respondents were in paid work during the reference week in 2006 and 2009, or temporarily absent from such work (n = 6,745). Four work-related psychosocial factors and six mechanical exposures were measured. Outcomes of interest were moderate or severe neck/shoulder pain at follow-up adjusted for baseline neck/shoulder pain.

Results

In total, 16.9 % (1,138 individuals) reported neck/shoulder pain during the last month at follow-up. Work related psychosocial predictors of neck/shoulder pain were high job demands (highest OR 1.41, 95 % CI 1.11–1.78) and low levels of supportive leadership (highest OR 1.66, 95 % CI 1.08–2.54). Mechanical factors were neck flexion (highest OR 1.77, 95 % CI 1.31–2.39) and lifting in awkward postures (highest OR 1.81, 95 % CI 1.21–2.71). The estimated population risk attributable to these factors was about 23 %. The relative risk for neck/shoulder pain associated with psychosocial exposure was slightly influenced by adjustment for physical risk factors, and vice versa. There was no substantial confounding related to age, gender, education, occupation or psychological distress.

Conclusions

Highly demanding jobs, neck flexion and awkward lifting appear as the most important predictors of neck/shoulder pain.     

Modeling life satisfaction in spinal cord injury: the role of psychological resources

Purpose

The aims of the study were (1) to examine the associations between the psychological resources general self-efficacy (GSE) and purpose in life (PIL), appraisals, coping and life satisfaction, and (2) to examine whether the effects of the psychological resources on life satisfaction are mediated by appraisals and coping, as proposed by the spinal cord injury adjustment model (SCIAM).

Methods

Cross-sectional multicenter study conducted with persons with spinal cord injury (SCI) living in the community in Switzerland (N = 516). Pearson’s correlations were calculated for aim 1, and structural equation modeling was conducted to address aim 2.

Results

GSE (r = .48) and PIL (r = .58) were positively related to life satisfaction. The initial model corresponding to the SCIAM yielded a poor model fit. The final model had a good model fit [χ ² = 66.0, df = 21, p < .01, RMSEA = .065 (90 % confidence interval .048–.082), CFI = .97] explaining 57 % of variance of life satisfaction. PIL had a direct large effect on life satisfaction (β = .54). The influence of GSE on life satisfaction was mediated by loss appraisals. Avoidance, active and humor coping had small effects on life satisfaction.

Conclusions

Psychological resources have a substantial effect on life satisfaction in persons with SCI. Our results correspond with the SCIAM and its conceptualization of adjustment as a multifactorial process, but did not fully support the hypothesized mediation. PIL was strongly related to higher life satisfaction and may be a suitable intervention target to support persons with SCI.     

Psychometric properties of a brief,clinically relevant measure of pain in patients with hepatocellular carcinoma

Purpose

Due to diagnosis at advanced stages, comorbidities, and the impact of treatment, patients with hepatocellular carcinoma (HCC) may experience pain. The purpose of this study was to evaluate the psychometric properties of a brief, clinically relevant measure of pain in HCC.

Methods

We conducted a secondary data analysis from four longitudinal studies of patients with HCC (total n = 304). All patients completed the FACT-Hepatobiliary (FACT-Hep) questionnaire, and 49 patients completed the Brief Pain Inventory (BPI) Interference scale. We conducted confirmatory factor analysis (CFA), Rasch modeling, and correlational analysis to assess the psychometrics of the three items on the FACT-Hep that assess HCC-relevant pain scale.

Results

Patients had an average age of 63.5 (±12.2) and were mostly male (76 %). The mean three-item pain subscale score was 8.5 ± 3.0. Seventy-four (24.3 %) patients reported no pain (score = 12). Results of a one-factor CFA supported unidimensionality of the items, and all items fit the Rasch model. An item-person map demonstrated that the three items covered all patients with non-extreme scores. Pain scores were significantly associated with baseline general health-related quality of life (FACT-General, r = 0.60, p < 0.001) and pain interference (BPI, r = ?0.63, p < 0.001).

Conclusions

The three FACT-Hep pain items are unidimensional, cover the range of pain experienced by most patients with HCC, and demonstrate convergent validity. This pain subscale is, if future research demonstrates its sensitivity to change, potentially useful for HCC clinical trials.     

Changing values, changing outcomes: the influence of reprioritization response shift on outcome assessment after spine surgery

Background

When patients experience a substantial health state change, they may undergo changes in the underlying meaning of their self-report to standardized outcome measures. These response shifts can reflect changes in the patient’s internal standards, values or conceptualization of quality of life. We investigated the presence of changing values (reprioritization response shift) in a longitudinal cohort of spine surgery patients.

Methods

Spinal decompression surgery patients (mean age 52 years; 39 % female, 36 % working) provided visual analogue scale (VAS) back and leg pain items, the Short-Form-36 (SF-36v1), and the Oswestry Disability Index (ODI) data pre- and post-surgery (n _pre = 169; n _6weeks = 102; n _3months = 106; n _6months = 68). Improved and No-Effect patient groups were compared using the VAS minimally important difference (±15 points) as a cutoff. Reprioritization response shift detection was based on change in the relative importance of the SF-36 domains for group discrimination pre- and post-surgery.

Results

The Improved group evidenced significant post-surgery differences from the No-Effect group on bodily pain, general health, physical functioning, social functioning, vitality, and the ODI. The relative importance analysis showed a differential effect with bodily pain (p < 0.01) and physical functioning (p < 0.05) becoming more important, and role physical (p < 0.01) becoming less important post-surgery in distinguishing the Improved group as compared to the No-Effect group. The Improved patients also evidenced stronger associations between bodily pain and physical functioning, vitality and general health (p < 0.05). The No-Effect group evidenced increased inter-correlations of bodily pain with social functioning, mental health, and general health (p < 0.05).

Conclusions

Patients who report clinically significant change in leg and back pain post-surgery using VAS pain scores are also distinguished by increased importance of bodily pain and physical functioning, and decreased importance of role physical. Bodily pain is primarily reflective of physical item response post-surgery among Improved patients, but reflects physical, social, and emotional item response among No-Effect patients. These changes in values may reflect a “moving goal post” in outcome assessment that complicates the interpretation of mean differences over time on standard spine outcome measures.     

The effects of anxiety sensitivity,pain hypervigilance,and pain catastrophizing on quality of life outcomes of patients with chronic pain: a preliminary,cross-sectional analysis

Purpose

In the fear-avoidance model (FAM) of chronic pain, pain-related fear is one of the most prominent predictors of negative adjustment outcomes. While existing data point to the effects of anxiety sensitivity, pain hypervigilance, and pain catastrophizing on pain-related fear, the nature of their multivariate relationships remains unclear. This study explored the possible mediating role of pain hypervigilance in the relationship of anxiety sensitivity and pain catastrophizing with pain-related fear, and their effects on quality of life (QoL) outcomes within the FAM framework.

Methods

A sample of 401 Chinese patients with chronic musculoskeletal pain completed the standardized measures assessing the FAM components and QoL. Structural equation modeling (SEM) was used to evaluate six hypothesized models.

Results

Results of SEM showed adequate data-model fit [comparative fit indexes (CFIs) ranging from 0.92 to 0.94] on models which specified pain hypervigilance as mediator of anxiety sensitivity and pain catastrophizing with pain-related fear on two QoL outcomes (QoL-Physical and QoL-Mental). Results consistent with net suppression effects of pain catastrophizing on anxiety sensitivity were found in SEM when both anxiety sensitivity and pain catastrophizing were included in the same full model to predict QoL-Physical (CFI = 0.95; Sobel z = 8.06, p < 0.001) and QoL-Mental (CFI = 0.93; Sobel z = 8.31, p < 0.001).

Conclusions

These cross-sectional analyses gave results consistent with pain hypervigilance, mediating the relationship of pain catastrophic cognition and anxiety sensitivity with pain-related fear. The net suppression effects of pain catastrophizing point to anxiety sensitivity, enhancing the effect of pain catastrophic cognition on pain hypervigilance. These findings elucidate how the interdependence of dispositional factors might influence pain adjustment and functioning.     

Determinants of health-related quality of life in people with Parkinson’s disease: a path analysis

Purpose

To identify the demographic factors, impairments and activity limitations that contribute to health-related quality of life (HRQOL) in people with idiopathic Parkinson’s disease (PD).

Method

Two hundred and ten individuals with idiopathic PD who participated in the baseline assessment of a randomized clinical trial were included. The Parkinson’s Disease Questionnaire-39 summary index was used to quantify HRQOL. In order to provide greater clarity regarding the determinants of HRQOL, path analysis was used to explore the relationships between the various predictors in relation to the functioning and disability framework of the International Classification of Functioning model.

Results

The two models of HRQOL that were examined in this study had a reasonable fit with the data. Activity limitations were found to be the strongest predictor of HRQOL. Limitations in performing self-care activities contributed the most to HRQOL in Model 1 (β = 0.38; p < 0.05), while limitations in functional mobility had the largest contribution in Model 2 (β = ?0.31; p < 0.0005). Self-reported history of falls was also found to have a significant and direct relationship with HRQOL in both models (Model 1 β = ?0.11; p < 0.05; Model 2 β = ?0.21; p < 0.05).

Conclusions

Health-related quality of life in PD is associated with self-care limitations, mobility limitations, self-reported history of falls and disease duration. Understanding how these factors are inter-related may assist clinicians focus their assessments and develop strategies that aim to minimize the negative functional and social sequelae of this debilitating disease.     

Impact of nocturnal calf cramping on quality of sleep and health-related quality of life

Purpose

To evaluate the impact of nocturnal calf cramping (a condition that affects one in two people over 60 years of age) on quality of sleep and health-related quality of life.

Methods

Eighty adults who experienced nocturnal calf cramp at least once per week and eighty age- and sex-matched controls who never experienced nocturnal cramp were recruited from the Greater Newcastle and Central Coast regions of New South Wales, Australia. All participants completed the SF-36v2 and the Medical Outcomes Study Sleep Survey (MOS-SS).

Results

People who experienced nocturnal muscle cramps reported more sleep disturbance (p < 0.001), less adequate sleep (p = 0.001), less quantity of sleep (p = 0.02) and more snoring (p = 0.03). Both sleep problem summary indices for the MOS-SS identified people who experienced nocturnal muscle cramp as having more sleep problems than the controls. People who experienced nocturnal muscle cramps had lower health-related quality of life for the SF-36 domains role physical (p = 0.007), bodily pain (p = 0.003) and general health (p = 0.02). SF-36 domains that primarily relate to mental health were not significantly different between groups. The impact of nocturnal calf cramps on health-related quality of life was largely explained by their negative impact on quality of sleep.

Conclusions

Nocturnal calf muscle cramps are associated with substantially reduced quality of sleep and reduced physical aspects of health-related quality of life.     

Longitudinal analysis of the relationship between PTSD symptom clusters, cigarette use, and physical health-related quality of life

Purpose

Posttraumatic stress disorder (PTSD) symptoms, particularly numbing and hyperarousal symptoms, are related to poor physical health-related quality of life (HRQoL). Tobacco dependence is also associated with poor HRQoL, and individuals with PTSD may smoke at higher rates than the general population. Our study aimed to examine the impact of quitting smoking and changes in PTSD symptoms over time on changes in physical HRQoL.

Methods

The study used archival data from enrollees (N = 943) in a smoking cessation clinical trial for veterans with PTSD (VA Cooperative study #519).

Results

Two of the physical HRQoL domains were sensitive to changes in PTSD symptoms over time: General Health and Vitality.

Conclusions

Our findings suggest that particular physical HRQoL domains may be subject to improvement if PTSD symptoms decrease over time.     

Impact of emotional and behavioral symptoms on quality of life in children and adolescents

Purpose

To evaluate how levels of anxiety, depressive and behavioral symptoms influence self-perceived quality of life (QOL) in general population of children and adolescents.

Method

A total of 237 children and adolescents aged 8–18 years participated in the study. The Screen for Child Anxiety Related Emotional Disorders Questionnaire (SCARED), Short Mood and Feeling Questionnaire (SMFQ) and Strengths and Difficulties Questionnaire (SDQ) were used to assess levels of anxiety, depressive and behavioral symptoms, respectively. The Pediatric Quality of Life Inventory (PedsQL) was used for QOL assessments. In a regression model, the PedsQL score was the dependent variable, while anxiety, depressive and behavioral symptoms were the QOL predictors.

Results

In children, the SCARED and SMFQ scores together with age and gender explained 30 % of the variance in the PedsQL scores (F = 12.31, p < 0.001), while in adolescents, the same set of variables was responsible for 36 % of the variance (F = 15.77, p < 0.001). The SCARED was a more significant predictor than the SMFQ. The SDQ scores did not emerge as the PedsQL predictors.

Conclusion

Levels of anxiety and depressive symptoms, but not behavioral ones, significantly affect self-reported QOL in general population of children and adolescents.     

Discriminant and convergent validity of a subjective quality-of-life instrument aimed at high content validity for schizophrenic persons

Objective

To analyse whether a subjective quality-of-life (QoL) instrument (QLiS—Quality-of-Life in Schizophrenia), developed on the basis of a large number of open-ended interviews with schizophrenic patients, has sufficient discriminant and convergent validity to justify its application as a schizophrenia-specific QoL instrument.

Method

The discriminant and convergent validity of the QLiS (comprising 12 subscales) was analysed in a cross-sectional study. Schizophrenic persons (n = 135) from different care settings were surveyed using the QLiS, the WHOQOL-Bref, the SWN and 7-point satisfaction items. Partial correlational analyses and regression analyses controlling for general life satisfaction were conducted comparing the QLiS subscales with those of the other instruments.

Results

Positive correlation coefficients were found among all subscales of the QLiS and the other QoL instruments (WHOQOL-BREF from r = 0.29 to r = 0.72; SWN, r = 0.14 to r = 0.83; satisfaction scales, r = 0.18 to r = 0.69). One QLiS subscale (cognitive functioning) was shown to be empirically redundant (r>0.80) to the mental functioning subscale of the SWN. All other subscales proved to have unique variance. The non-QLiS QoL instruments only accounted for substantial amounts of variance (>20% after controlling for global life satisfaction) in the QLiS subscales leading a normal life, appreciation by others, appraisal of accommodation/housing and social contacts.

Discussion

Most of the QLiS subscales can be regarded as sufficiently distinct from other QoL instruments, and thus show evidence of discriminant and convergent validity.

Conclusion

A subjective QoL questionnaire with high content validity can provide additional empirical information about schizophrenics’ QoL not accounted for by other common QoL instruments.     

Quality of life and related variables in patients with ankylosing spondylitis

Objectives

To evaluate quality of life (QoL) and related variables in patients with ankylosing spondylitis (AS), a chronic inflammatory disease of the spine.

Methods

Nine-hundred and sixty-two patients with AS from the Turkish League Against Rheumatism AS Registry, who fulfilled the modified New York criteria, were enrolled. The patients were evaluated using the Assessment of SpondyloArthritis International Society core outcome domains including Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), fatigue (BASDAI-question 1), pain (last week/spine/due to AS), Bath Ankylosing Spondylitis Functional Index (BASFI), Bath Ankylosing Spondylitis Metrology Index (BASMI), Bath Ankylosing Spondylitis Radiology Index (BASRI), Maastricht Ankylosing Spondylitis Enthesitis Score (MASES) and two QoL questionnaires (the disease-specific ASQoL and generic the Short Form-36 [SF-36]).

Results

The mean ASQoL score was 7.1 ± 5.7. SF-36 subscales of general health, physical role and bodily pain had the poorest scores. ASQoL was strongly correlated with disease duration, BASDAI, fatigue, BASFI, BASMI, BASRI, MASES, pain and SF-36 subscales (P < 0.001). SF-36 subscales were also strongly correlated with BASDAI and BASFI. Advanced educational status and regular exercise habits positively affected QoL, while smoking negatively affected QoL.

Conclusions

In patients with AS, the most significant variables associated with QoL were BASDAI, BASFI, fatigue and pain. ASQoL was noted to be a short, rapid and simple patient-reported outcome (PRO) instrument and strongly correlated with SF-36 subscales.     

The impact of persistent visually disabling vitreous floaters on health status utility values

Purpose

To assess the time trade-off (TTO) utility values in patients with persistent visually disabling vitreous floaters (DVF) and to determine the reliability and validity of TTO methods in DVF patients.

Methods

Prospective cross-sectional questionnaire survey: Eligible patients with persistent DVF referred to the Shanghai First People’s Hospital outpatient service between January 2006 and February 2010, and randomly selected normal vision general population residents, were enrolled. All participants underwent TTO utility value evaluation. After 4–5 weeks, the patients were asked to undergo second TTO utility value evaluation during the follow-up interview.

Results

The mean initial utility values of the 107 persistent DVF patients were 0.904 ± 0.054. Regression analyses revealed that length of education, visual acuity in the poorer-vision eye and employment status were associated with utility values (all P < 0.01). All patients took part in the follow-up interview; the intra-class correlation coefficient for TTO utility values at the initial and follow-up interviews was 0.855. In the 91 general population residents, the mean utility value was 0.923 ± 0.032, which was statistically higher than that of active study patients (t = 3.01, P < 0.01).

Conclusions

Persistent DVF can substantially diminish the patients’ perception of their life, and can be measured by TTO utility values with high reliability and construct validity.     

Explaining educational inequalities in adolescent life satisfaction: do health behaviour and gender matter?

Objectives

There is little evidence on the explanation of health inequalities based on a gender sensitive perspective. The aim was to investigate to what extent health behaviours mediate the association between educational inequalities and life satisfaction of boys and girls.

Methods

Data were derived from the German part of the Health Behaviour in School-aged Children (HBSC) study 2010 (n = 5,005). Logistic regression models were conducted to investigate educational inequalities in life satisfaction among 11- to 15-year-old students and the relative impact of health behaviour in explaining these inequalities.

Results

Educational inequalities in life satisfaction were more pronounced in boys than in girls from lower educational tracks (OR 2.82, 95 % CI 1.97–4.05 and OR 2.30, 95 % CI 1.68–3.14). For adolescents belonging to the lowest educational track, behavioural factors contributed to 18 % (boys) and 39 % (girls) in the explanation of educational inequalities in life satisfaction.

Conclusions

The relationship between educational track and life satisfaction is substantially mediated by health-related behaviours. To tackle inequalities in adolescent health, behavioural factors should be targeted at adolescents from lower educational tracks, with special focus on gender differences.     

Quality of life in head and neck cancer patients after tumor therapy and subsequent rehabilitation: an exploratory study

Purpose

The aim of the study was to evaluate patient-reported quality of life effects of post-treatment intraoral and extraoral rehabilitation in head and neck cancer by repeated measures.

Methods

Fifty-nine patients were involved. Basic socio-demographic, oncological and epidemiological data were gathered, and the type of rehabilitation was recorded. For the assessment of quality of life changes, two widely used brief questionnaires, the University of Washington Quality of Life Questionnaire and the Head and Neck module of the European Organization of Research and Treatment for Cancer Quality of Life Questionnaire, were used. The questionnaires were administered to patients two times: the first time after tumor therapy, but before rehabilitation (upon arriving for rehabilitation) and the second time 6 months after the application of any particular method of rehabilitation. Quality of life data were gathered prospectively, while socio-demographic data were gathered from patient files.

Results

Quality of life after rehabilitation was significantly enhanced as compared to the post-treatment status, in all domains of both questionnaires (p < 0.05 and p < 0.01, Mann–Whitney U).

Conclusions

The results support the hypothesis that post-treatment maxillofacial rehabilitation in head and neck cancer does not only restore lost physical capabilities, but also brings about profound changes in patients’ quality of life in general.     

A comparison of EQ-5D-3L population norms in Queensland,Australia, estimated using utility value sets from Australia,the UK and USA

Purpose

To provide population norms for the EQ-5D-3L by age and gender based on a representative adult sample in Queensland, Australia; to assess differences in health-related quality of life by applying the Australian, UK and USA value sets to these data; and to assess differences in utility scores for key preventive health indicators.

Methods

A cross-sectional computer-assisted telephone interview survey (March–June 2011) with 5,555 adults. Respondents rated their impairment (none, moderate, severe problems) across five domains (mobility, self-care, usual activities, pain and discomfort, anxiety or depression) using the validated EQ-5D-3L health-related quality of life instrument. Utility score indexes were derived using the Australian, UK and USA value sets.

Results

Forty per cent of adults reported pain and discomfort while 3 % indicated problems with self-care. Approximately one in six had limitations with mobility, usual activities or anxiety or depression. The three value sets performed similarly in discriminating differences based on most characteristics, and clinically meaningful differences were seen for age, body weight, physical activity and daily smoking. There were no differences in utility scores for gender.

Conclusions

This is the first study to report general population findings for the Australian EQ-5D-3L value set. Overall, the Australian value set performed comparably with other value sets commonly used in the Australian population; however, differences were observed. Results will enable further refinement to health and economic studies in an Australian-specific context.     

No negative effects of a multi-factorial, intensified treatment on self-reported health status, treatment satisfaction, and diabetes-related distress in screen-detected type 2 diabetes patients. The ADDITION-Netherlands study

Purpose

To examine the effects of a multi-factorial, intensified treatment on self-reported health status, treatment satisfaction, and diabetes-related distress in screen-detected type 2 diabetes patients.

Methods

Cluster-randomised controlled trial; A total of 498 screen-detected type 2 diabetes patients from 79 general practices were assigned to intensified (n = 255) or routine treatment according to Dutch guidelines (n = 243). At baseline and after 3 years, patients completed the Short Form-36 and the European Quality of Life-5 Dimensions questionnaires. After 4.5 years, patients completed the Diabetes Treatment Satisfaction Questionnaire and the Problem Areas In Diabetes scale. We analysed the effects of intensified treatment on self-rated health status, treatment satisfaction, and diabetes-related distress, using random effects models to account for clustering at practice level.

Results

Three to 5 years after type 2 diabetes was detected by screening, there were no differences between intensified and routine treatment in self-reported health status, treatment satisfaction, and diabetes-related distress.

Conclusions

Multi-factorial, intensified treatment did not influence self-rated health status, treatment satisfaction, and distress in screen-detected type 2 diabetes patients. Therefore, health care professionals do not have to fear negative effects of an intensified treatment on these psychological outcomes.     

Development and validation of the positive affect and well-being scale for the neurology quality of life (Neuro-QOL) measurement system

Purpose

To develop and validate an item-response theory-based patient-reported outcomes assessment tool of positive affect and well-being (PAW). This is part of a larger NINDS-funded study to develop a health-related quality of life measurement system across major neurological disorders, called Neuro-QOL.

Methods

Informed by a literature review and qualitative input from clinicians and patients, item pools were created to assess PAW concepts. Items were administered to a general population sample (N = 513) and a group of individuals with a variety of neurologic conditions (N = 581) for calibration and validation purposes, respectively.

Results

A 23-item calibrated bank and a 9-item short form of PAW was developed, reflecting components of positive affect, life satisfaction, or an overall sense of purpose and meaning. The Neuro-QOL PAW measure demonstrated sufficient unidimensionality and displayed good internal consistency, test–retest reliability, model fit, convergent and discriminant validity, and responsiveness.

Conclusion

The Neuro-QOL PAW measure was designed to aid clinicians and researchers to better evaluate and understand the potential role of positive health processes for individuals with chronic neurological conditions. Further psychometric testing within and between neurological conditions, as well as testing in non-neurologic chronic diseases, will help evaluate the generalizability of this new tool.     

Assessing the effects of oral health-related variables on quality of life in Taiwanese adults

Purpose

The impact of oral health status on Taiwanese adults’ quality of life has not been measured definitively. This study evaluated the effects of oral health-related variables on quality of life among adults in Taiwan.

Methods

A cross-sectional study design with secondary database analysis was adopted. Information about oral health-related variables in adults aged 18–64 years was collected from the National Health Interview Survey and quality-of-life data from the Short-Form Health Survey (SF-36^®). Univariate and multivariate regression analysis was used to determine risk factors for oral health and associations between oral health and eight domains of quality of life defined by the SF-36.

Results

Gender (P < 0.001), marital status (P < 0.001), monthly income (P < 0.001), disease history (P < 0.001), betel nut chewing (P < 0.001), oral hygiene (P < 0.001), oral health status (P < 0.001), and dental care utilization (P = 0.001) had significant effects on general health as an aspect of quality of life; gender (P < 0.001), marital status (divorced, P < 0.001), income level (20,000–80,000 NTD, P < 0.001), disease history (P < 0.001), oral hygiene, oral health-related food choice limitations (P < 0.001), and dental care utilization (P < 0.001) had significant effects on general mental health. Subjects who practiced dental self-care with tooth brushing had significantly higher social functioning scores than those who did not (P < 0.001). Significant differences were also found in scale items for physical functioning, role limitations due to physical health, bodily pain, vitality, and role limitations due to emotional problems (all P < 0.001).

Conclusions

Demographic (i.e., age, gender, and marital status and income levels) and oral health-related factors (i.e., oral hygiene, dental visits, disease history, and lifestyle factors such as cigarette smoking, alcohol use, and betel nut chewing) are all significantly associated with oral health-related quality of life in Taiwanese adults.