Validation of a brief seven-item response bias-free geriatric depression scale

Depression and Suicide Risk Screening: Updated Evidence Report and Systematic Review for the US Preventive Services Task Force

Importance

Depression is common and associated with substantial burden. Suicide rates have increased over the past decade, and both suicide attempts and deaths have devastating effects on individuals and families.

Objective

To review the benefits and harms of screening and treatment for depression and suicide risk and the accuracy of instruments to detect these conditions among primary care patients.

Data Sources

MEDLINE, PsychINFO, Cochrane library through September 7, 2022; references of existing reviews; ongoing surveillance for relevant literature through November 25, 2022.

Study Selection

English-language studies of screening or treatment compared with control conditions, or test accuracy of screening instruments (for depression, instruments were selected a priori; for suicide risk, all were included). Existing systematic reviews were used for treatment and test accuracy for depression.

Data Extraction and Synthesis

One investigator abstracted data; a second checked accuracy. Two investigators independently rated study quality. Findings were synthesized qualitatively, including reporting of meta-analysis results from existing systematic reviews; meta-analyses were conducted on original research when evidence was sufficient.

Main Outcomes and Measures

Depression outcomes; suicidal ideation, attempts, and deaths; sensitivity and specificity of screening tools.

Results

For depression, 105 studies were included: 32 original studies (N=385 607) and 73 systematic reviews (including ≈2138 studies [N ≈ 9.8 million]). Depression screening interventions, many of which included additional components beyond screening, were associated with a lower prevalence of depression or clinically important depressive symptomatology after 6 to 12 months (pooled odds ratio, 0.60 [95% CI, 0.50-0.73]; reported in 8 randomized clinical trials [n=10 244]; I2 = 0%). Several instruments demonstrated adequate test accuracy (eg, for the 9-item Patient Health Questionnaire at a cutoff of 10 or greater, the pooled sensitivity was 0.85 [95% CI, 0.79-0.89] and specificity was 0.85 [95% CI, 0.82-0.88]; reported in 47 studies [n = 11 234]). A large body of evidence supported benefits of psychological and pharmacologic treatment of depression. A pooled estimate from trials used for US Food and Drug Administration approval suggested a very small increase in the absolute risk of a suicide attempt with second-generation antidepressants (odds ratio, 1.53 [95% CI, 1.09-2.15]; n = 40 857; 0.7% of antidepressant users had a suicide attempt vs 0.3% of placebo users; median follow-up, 8 weeks). Twenty-seven studies (n = 24 826) addressed suicide risk. One randomized clinical trial (n=443) of a suicide risk screening intervention found no difference in suicidal ideation after 2 weeks between primary care patients who were and were not screened for suicide risk. Three studies of suicide risk test accuracy were included; none included replication of any instrument. The included suicide prevention studies generally did not demonstrate an improvement over usual care, which typically included specialty mental health treatment.

Conclusions and Relevance

Evidence supported depression screening in primary care settings, including during pregnancy and postpartum. There are numerous important gaps in the evidence for suicide risk screening in primary care settings.

Pragmatic multicentre stepped-wedge cluster randomised trial to investigate the effectiveness of community-based falls prevention programme for older adults with falls risk in Singapore: a protocol paper

INTRODUCTION

Falls are an important public health issue with consequences that include injuries, quality of life reduction and high healthcare costs. Studies show that falls prevention strategies are effective in reducing falls rate among community-dwelling older adults. However, the evaluation for effectiveness was usually done in a controlled setting with homogeneous population, and thus may not be generalisable to a wider population. This study aims to evaluate the impact of community falls prevention programmes with group-based strength and balance exercises, on falls risk and health outcomes for older adults with falls risk in Singapore.

METHODS AND ANALYSIS

This is a pragmatic closed cohort stepped-wedge cluster randomised trial design study, which involves sequential crossover of clusters from the waitlist control condition to the intervention condition, with the sequence of crossover randomly determined. The intervention will be sequentially rolled out to 12 clusters (a minimum of 5 participants/cluster), over 6 time periods with 8-week intervals in Central and North regions of Singapore. The primary analysis will be conducted under the intention-to-treat principle. A general linear mixed model or generalised estimating equation analysis appropriate for a multilevel longitudinal study incorporating an appropriate error distribution and link function will be used. Markov model will be developed to estimate the incremental cost per quality-adjusted life years and incremental cost per fall prevented from the implementation of falls prevention strategies from a societal perspective. Conditional on there being clinically relevant differences in short-term outcomes, we will implement simulation modelling to project the long-term divergence in trajectories for outcomes and costs using the Markov model.

ETHICS AND DISSEMINATION

Ethics approval has been obtained. Results will be disseminated in publications and other relevant platforms.

TRIAL REGISTRATION NUMBER

NCT04788251.

Are accuracy discernment and sharing of COVID-19 misinformation associated with older age and lower neurocognitive functioning?

The online proliferation of COVID-19 misinformation led to adverse health and societal consequences. This study investigated possible differences in COVID-19 headline accuracy discernment and online sharing of COVID-19 misinformation between older and younger adults, as well as the role of individual differences in global cognition, health literacy and verbal IQ. Fifty-two younger (18-35 years old) and fifty older adults (age 50 and older) completed a neurocognitive battery, health literacy and numeracy measures, and self-report questionnaires via telephone. Participants also completed a social media headline-sharing experiment (Pennycook et al., Psychological science, 31(7), 770-780, 2020) in which they were presented with true and false COVID-19 headlines about which they indicated: 1) the likelihood that they would share the story on social media; and 2) the factual accuracy of the story. A repeated measures multivariate analysis of variance controlling for gender and race/ethnicity showed no effects of age (p = .099) but a significant interaction between actual COVID-19 headline accuracy and the likelihood of sharing (p < .001), such that accuracy was more strongly related to sharing false headlines (r = -.64) versus true headlines (r = -.43). Moreover, a higher likelihood of sharing false COVID-19 headlines was associated with lower verbal IQ and numeracy skills in older adults (rs = -.51--.40) and with lower verbal IQ, numeracy, and global cognition in younger adults (rs = -.66--.60). Findings indicate that headline accuracy judgements, numeracy, and verbal IQ are important contributors to sharing COVID-19 misinformation in both older and younger adults. Future work might examine the benefits of psychoeducation for improving health and science literacy for COVID-19.

Supplementary Information

The online version contains supplementary material available at 10.1007/s12144-023-04464-w.

Approaches to engage an aging, rural cohort in southern India during the COVID-19 crisis and the psychological impact of COVID-19 in this cohort

INTRODUCTION

The COVID-19 pandemic produced an unprecedented crisis across the world. Long-term cohort studies were stalled, including our longitudinal aging cohort study in rural India.

METHODS

We describe approaches undertaken to engage with our cohort (n = 1830) through multiple rounds of calls and how we provided useful services to our subjects during the lockdown period. Consenting subjects also underwent telephonic assessments for depression and anxiety using validated, self-report questionnaires.

RESULTS

Subjects reported benefitting from our telephonic engagement strategies, including the COVID-related safety awareness and counselling service. The proportion of subjects with depression increased from 7.42% pre-COVID to 28.97% post-COVID.

DISCUSSION

We envisage that such engagement strategies would improve subject rapport and cohort retention, and thus, could be adopted by similar cohort studies across the world. This marginalized, rural Indian community had severe, adverse psychological impact in this pandemic. Urgent public health measures are needed to mitigate this impact and develop appropriate preventive strategies.

Accuracy of 12 short versions of the Geriatric Depression Scale to detect depression in a prospective study of a high-risk population with different levels of cognition

OBJECTIVES

To determine the accuracy of 12 previously validated short versions of the Geriatric Depression Scale (GDS) to detect major depressive disorder (MDD) in a high-risk population with and without global cognitive impairment.

DESIGN

Cross-sectional study.

SETTING

Five hospitals, Western Sweden.

PARTICIPANTS

Older adults (age ≥70 years, n = 60) assessed at a home visit 1 year after hospital care in connection with suicide attempt.

MEASUREMENTS

Depression symptoms were rated using the established 15-item GDS. Eleven short GDS versions identified by a recent systematic review were derived from this administered version. Receiver operating characteristic curves and area under the curve (AUC) for the identification of MDD diagnosed according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, were obtained for each version. The Youden Index optimal criterion was used to determine the appropriate cutoffs. Analyses were repeated after stratification by cognitive status (Mini Mental State Examination score ≤24 and >24) for the best performing GDS short versions and the established 15-item GDS.

RESULTS

The 7-item GDS according to Broekman et al. (), with a cutoff 3, was the most accurate among the 12 short versions (AUC 0.90, 95% confidence interval 0.80-1.00), identifying MDD with sensitivity 88% and specificity 81%. The cutoff score remained consistent in the presence of global cognitive impairment, which was not the case for the standardized 15-item GDS.

CONCLUSION

The Broekman 7-item GDS had high accuracy to detect MDD in this prospective clinical cohort at high risk for MDD. Further testing of GDS short versions in diverse settings is required.

Evaluating hierarchical items of the geriatric depression scale through factor analysis and item response theory

Background

Geriatric depression scale (GDS) is a common screening tool for measuring depression among older adults. It employs a multi-factor structure and some differential item functioning (DIF) allowing different versions of GDS across cultures. The present study aimed to identify the short version of the hierarchical scale of GDS in which all items comprised the invariant item ordering, and items without DIF.

Methods

Participants and Measurement: A total of 803 participants, 70% female, with a mean age of 69.24 years (SD = 6.88) were enrolled from three geriatric units of tertiary care hospitals. All completed the 15-item GDS. Three methods of confirmatory factor analysis (CFA) with multiple indicators, multiple cause model, Mokken analysis and Rasch analysis were applied.

Results

Item 9 (prefer to stay at home) showed poor discriminatory power among all three methods. After removing DIF items due to sex and age, nine items remained suitable for the shortened version by CFA. When Mokken and Rasch analysis were applied, only six items remained for the hierarchical scale. Compared with other related shortened version of GDS, the new GDS-6 proved to have a comparable ability to detect depression as did the original 15-item GDS.

Limitation

The new GDS-6 needs to be investigated for test-retest reliability to ensure temporal stability of the scale. This cross-sectional analysis needs replication.

Conclusion

The GDS-6 derived from IRT had measurement properties and met criteria related to unidimensionality and ability to separate levels of depression. It was shown to be equal to or better in predicting performance compared with the original 15-item GDS.

Factors associated with social participation amongst elders in rural Sri Lanka: a cross-sectional mixed methods analysis

BACKGROUND

Populations of low and middle-income countries are ageing rapidly; there is a need for policies that support an increase in the duration of old age lived in good health. There is growing evidence that social participation protects against morbidity and mortality, but few studies explore patterns of social participation. Analysis of baseline quantitative and qualitative data from a trial of the impact of Elders' Clubs on health and well-being in the hill country of Sri Lanka provided an opportunity to better understand the extent of, and influences on, social participation among elders.

METHODS

We analysed data from 1028 baseline survey respondents and from 12 focus group discussions. Participants were consenting elders, aged over 60 years, living in Tamil tea plantation communities or Sinhala villages in 40 randomly selected local government divisions. We assessed participation in organised social activities using self-reported attendance during the previous year. Multivariable regression analyses were used to explore associations with community and individual factors. The quantitative findings were complemented by thematic analysis of focus group discussion transcripts.

RESULTS

Social participation in these poor, geographically isolated communities was low: 63% reported 'no' or 'very low' engagement with organised activities. Plantation community elders reported significantly less participation than village elders. Attendance at religious activities was common and valued. Individual factors with significant positive association with social participation in multivariable analyses were being younger, male, Sinhala, married, employed, and satisfied with one's health. Domestic work and cultural constraints often prevented older women from attending organised activities.

CONCLUSIONS

Elders likely to benefit most from greater social contact are those most likely to face barriers, including older women, the oldest old, those living alone and those in poor health. Understanding these barriers can inform strategies to overcome them. This might include opportunities for both informal and formal social contact close to elders' homes, consulting elders, providing childcare, improving physical access, advocating with elders' families and religious leaders, and encouraging mutual support and inter-generational activities. Influences on social participation are interrelated and vary with the history, culture and community environment. Further study is required in other low and middle-income country contexts.

CHF-PROM: validation of a patient-reported outcome measure for patients with chronic heart failure

BACKGROUND

Due to a lack of an appropriate disease-specific patient-reported outcome (PRO) instrument for chronic heart failure including its social support and treatment aspects in China, this study was performed to develop a patient-reported outcome measure (PROM) for patients with chronic heart failure and evaluate its reliability, validity, and feasibility.

METHODS

According to the standard PROM guidelines established by the Food and Drug Administration, an item pool was formed by reviewing a large amount of relevant literature and interviewing patients with chronic heart failure about their main symptoms. Thus, the primary scale was created after adjusting the items and language with the help of patients and experts in the field. Next, 155 patients from 8 hospitals in different districts were recruited for a pilot survey using questionnaires containing these items. The patients' responses were analyzed using the classical test theory and item response theory to select high-quality items and determine the subdomains of the scale. This was followed by a formal investigation in the same eight hospitals. In total, 360 patients and 100 healthy subjects were included to evaluate the reliability, validity, and feasibility of the items. Through this process, the final scale was established.

RESULTS

The final scale comprised 12 subdomains with 57 items related to physical, psychological, social, and therapeutic areas. The data analysis results of the formal investigation showed that the PROM for chronic heart failure had good reliability, validity, and feasibility. Reliability was verified by Cronbach's alpha coefficient, which was 0.913 for the total scale, 0.903 for the physical domain, 0.941 for the psychological domain, 0.827 for the social domain, and 0.839 for the therapeutic domain. The construct validity results met the relative criteria of confirmatory factor analysis. Discriminant validity was represented by score comparisons of nine subdomains. The response rate and the effective rate of return of the CHF-PROM were 98.94% and 98.92%, respectively.

CONCLUSIONS

The final scale coincides with the theoretical framework and better reflects the overall quality of life of patients with chronic heart failure. This scale can be used as a valid instrument to evaluate clinical treatment and clinical trials of chronic heart failure.

Does the 15-item Geriatric Depression Scale function differently in old people with different levels of cognitive functioning?

BACKGROUND

The 15-item version of the Geriatric Depression Scale (GDS-15) is widely employed to screen depression among elderly but little is known about the scale functioning in cognitively impaired individuals when compared to normal ones. The aim of the current study is to investigate Differential Item Functioning (DIF) across groups of older people that differ in terms of cognitive functioning applying Item Response Theory (IRT)-based analyses.

METHODS

Data from an Italian multi-centric clinical-based study on cognitive impairment and dementia in old people were employed (N = 1903; Age: M = 77.33, SD = 7.05, 62% women). All the participants underwent a comprehensive evaluation (including clinical examination, laboratory screening, neuroimaging, and cognitive and behavioral assessments) and they were assigned to three different groups on the basis of their cognitive functioning (normal, mild cognitive impairment, cognitive impairment) RESULTS: Two items showed uniform DIF but their differential functioning does not propagate to the GDS-15 total scores in such a way that a differential interpretation is needed LIMITATIONS: Whereas an advantage of the study is the large sample size, the relatively small size of the mild cognitive impairment group might reduce the stability of the present results CONCLUSIONS: Since a screening tool for elderly is intended to apply to everyone in the target population, the current findings support the clinical utility of the GDS-15 as screening tool for depression.

BC-PROM: validation of a patient-reported outcomes measure for patients with breast cancer

Key issues of treatment for patients with breast cancer such as patient satisfaction with treatments, compliance, and some side effects are essential for evaluating quality of life by patient-reported outcomes in clinical trials. The study aimed to develop and evaluate a specific patient-reported measure which included physical, psychological, social, and therapeutic domain for assessing the survival of patients with breast cancer.The pool of items was drafted after a theoretical revision and cognitive interviews with women with breast cancer. The draft scale was formed after the adjustment of the items and dimensions, and the selected items were submitted to expert's judgments. Five statistical methods were used to select these items by 2 validation samples. The final scale was administered to a sample of 417 patients from 8 hospitals and 135 controls for reliability, validity, and responsive analyses.The final BC-PROM consisted of 52 items, 13 subdomains, and 4 domains, being developed after preexamination and formal examination. Cronbach alpha coefficient was 0.902 and 0.712 for the full scale and therapeutic domain. The structural validity results showed that the multidimensional measurement of the scale fulfilled expectations. Differences in the BC-PROM mean scores were significant between cancer patients and healthy participants in 13 subdomains (P < .05), indicating good responsiveness. Among the sample survey of patients, the scale copy acceptance rate was 98.2%, completion rate 94.6%, and average filling time 10 minutes.The new and reliable BC-PROM was developed in patients with breast cancer and applied to clinical treatment evaluation and clinical trials for such patients.

The diagnostic accuracy of brief versions of the Geriatric Depression Scale: a systematic review and meta-analysis

BACKGROUND

Depression in older adults is often under recognised despite it being the most common mental health illness in this age group. An increasing older adult population highlights the need for improved diagnostic rates. Brief versions (15 items or less) of the Geriatric Depression Scale (GDS), which are suitable for busy clinical practice, could improve detection rates.

OBJECTIVE

Our aim is to establish the diagnostic accuracy of brief versions of the GDS.

METHODS

Twelve electronic databases of published and unpublished literature were searched. Study selection was in accordance with predefined inclusion and exclusion criteria. A recognised gold-standard diagnostic instrument was used as a comparator against data pertaining to the use of a brief version of the GDS in an older adult population. The QUADAS-II was utilised for quality assessment. Narrative analysis and, where possible, meta-analysis were performed.

RESULTS

Thirty-two studies were identified that provided diagnostic data regarding seven brief versions of the GDS (1, 4, 5, 7 8, 10 and 15-item versions). Pooled sensitivity was 0.89 (95% confidence interval (CI) 0.80-0.94), and specificity was 0.77 (95% CI 0.65-0.86) for the GDS-15 at the recommended cut-off score of 5. Meta-analysis of other brief versions was not possible because of an insufficient number of studies with standardised items.

CONCLUSIONS

Results suggest the possibility of selective reporting of cut-off scores, and therefore, findings should be approached cautiously. Studies should report all cut-off scores, and all brief GDS versions should be compiled of standardised items. Copyright © 2016 John Wiley & Sons, Ltd.

A Brief Dementia Test with Subjective and Objective Measures

BACKGROUND

The development of an effective brief dementia test will help in the early identification of dementia.

AIM

This study investigates the diagnostic utility of a brief cognitive test for dementia which combines a short subjective informant-rated questionnaire (AD8) with an objective cognitive measure (Mini-Mental State Examination, MMSE) or its subcomponents.

METHODS

Subjects with mild dementia (Clinical Dementia Rating Scale score ≤1) were matched with community-dwelling, cognitively intact controls. MMSE and Clinical Dementia Rating Scale were administered to all subjects, while AD8 was completed by a reliable informant. Receiver operating characteristics analysis determined the diagnostic accuracies of AD8, MMSE, and AD8 combined with MMSE (AD8+MMSE). Stepwise logistic regression identified the subcomponents of MMSE which, combined with AD8, best discriminated dementia patients from controls.

RESULTS

The AD8 (area under the curve [AUC] = 0.92, 95% confidence interval [CI] 0.89-0.95) was superior to the MMSE (AUC = 0.87, 95% CI 0.83-0.92) in discriminating mild dementia patients from controls, and AD8+MMSE (AUC = 0.95, 0.92-0.98) increased its superior discrimination over MMSE alone. AD8 combined with three-item recall and intersecting pentagon copy (AUC = 0.95, 95% CI 0.92-0.97) performed as well as AD8 combined with full MMSE.

CONCLUSION

AD8 combined with the MMSE subcomponents three-item recall and intersecting pentagon copy has excellent diagnostic utility and is a promising brief cognitive test for early dementia.

An adapted adult day centre for older adults with sensory impairment

The MAB-Mackay Rehabilitation Centre runs a Day Centre Programme whose objectives are to maintain or improve the seniors’ biological, psychological, and social health while delaying or avoiding institutionalization. Activities include walking groups, language courses, and memory games, supervised by an interdisciplinary team. Services include rehabilitation follow-up and referrals to community resources. The present study reports on the impact of the Day Centre on the holistic health of older adults with visual impairment. Between September 2011 and October 2012, 30 newly referred clients (age = 71–98 years, M = 85, visual acuity [VA] 20/50 to no-light-perception [NLP], M = 20/126) were evaluated at intake, and after 6 and 12 months, including the Visual Function Questionnaire-14, Hearing Handicap Inventory for the Elderly, Geriatric Depression Scale, Friendship Scale, Timed Up and Go Test, and Montreal Cognitive Assessment (MoCA). In all, 19 participants completed the 1-year follow-up and continued to live independently in the community 12 months after entering the Day Centre. Only one person was transferred into long-term care. Comorbid conditions included high blood pressure, asthma, cardiac problems, diabetes, stroke, arthritis, and osteoporosis. Participants reported statistically unchanged scores on all the measures, except for improved MoCA scores, p < .05. Considering the vulnerability of this population, the data indicate that the Day Centre contributes to prevent decline in its clients’ general well-being. The increase in cognitive scores is possibly linked to practice effects and reduced test anxiety. Participation in adapted Day Centre activities, as an integrated part of rehabilitation services, may support independent living in older adults with vision loss.

The Use of GDS-15 in Detecting MDD: A Comparison Between Residents in a Thai Long-Term Care Home and Geriatric Outpatients

Background

To assess the psychometric properties of the Thai version of the 15-item Geriatric Depression Scale (TGDS-15) when screening for major depression (MDD) among geriatric outpatients (GOs) and long-term care (LTC) home residents in Thailand.

Methods

This was a cross-sectional study of 156 geriatric outpatients and 81 LTC home residents. All 237 participants were given a Mini-Mental State Examination, a MDD diagnosis according to the Mini-International Neuropsychiatric Interview, and completed a TGDS-15 questionnaire. Sensitivity, specificity, overall accuracy, and positive and negative predictive values were calculated. A comparison between the two groups was carried out. Differential Item Functioning (DIF) using logistic regression and factor analytic study were also applied.

Results

Overall, 38.4% of the participants were found to have MDD. The TGDS-15 was found to perform better when used with the GOs than with the LTC home residents, revealing a sensitivity of 0.92 and a specificity of 0.87 in the GOs (cut-off score of ≥ 5), but a sensitivity of 100% and a specificity of 49% with the LTC home group (cut-off score of ≥ 8), when comparing only cognitively intact subjects. The negative predictive value (NPV) was very good for both groups, but the positive predictive value (PPV) for the GO group was much better than for those in the LTC group (83.3% vs. 31.2%). Seven uniform DIF items were found - 2 by gender and 4 by age. Cronbach’s alpha was higher for the GO group than for the LTC home residents. Factor analysis supported a two-factor solution, using the ‘depressed mood’ and ‘positive mood’ factors, which accounted for 46.55% of the total variance.

Conclusions

The TGDS-15 scale was effective at screening for MDD in elderly cognitively intact Thais, those in both GO and LTC settings, as the sensitivity and NPV were shown to be very good in both groups. However, in the LTC setting, the low specificity and PPV found leads to the need for a further assessment to be carried among the potentially depressed individuals, based on the GDS results. Taking the factor analytic study into account, a more suitable version of the GDS should be developed.