Validation of the World Health Organization Disability Assessment Schedule 2.0 among older adults in an Asian country

INTRODUCTION@#As populations age globally and the burden of chronic illnesses increases, valid measures of disability are needed for assessment in the older adult population. The aim of the current analysis was to explore the psychometric properties and validity of the 12-item World Health Organization Disability Assessment Schedule 2.0 (WHODAS 2.0) in an epidemiological survey of older adults in Singapore.@*METHODS@#The study comprised secondary data analysis of the Well-being of the Singapore Elderly study. Inclusion criteria for the study were Singapore residents (Singapore citizens and permanent residents) aged 60 years and above. The 12-item interviewer-administered version of the WHODAS 2.0 was used to assess disability in the study. Data on cognition, health status and sociodemographic information were collected. Depression was assessed using the Automated Geriatric Examination for Computer Assisted Taxonomy.@*RESULTS@#The study found a one-factor model solution for WHODAS 2.0 with a high internal consistency of all items. The internal consistency for the overall scale was 0.92. The WHODAS 2.0 score positively correlated with multimorbidity, perceived overall health status, depression and subsyndromal depression. There was a significant inverse association between the WHODAS 2.0 score and the cognitive status. After adjustment for all sociodemographic variables in the multiple linear regression analysis, these measures remained significantly associated with the WHODAS 2.0 score.@*CONCLUSION@#WHODAS 2.0 was found to be a valid measure of disability among older adults. However, further research is required to determine its usefulness as a responsive instrument that can detect change following interventions.

Successful ageing in Singapore: prevalence and correlates from a national survey of older adults

INTRODUCTION@#The current study aimed to estimate the overall prevalence and sociodemographic correlates of successful ageing, as defined by Rowe and Kahn, among a national sample of multiethnic adults aged 60 years and older in Singapore.@*METHODS@#Data from older adults who participated in the Well-being of the Singapore Elderly study was analysed. Successful ageing was defined with five indicators: no major diseases; no disability; high cognitive functioning; high physical functioning; and active engagement with life.@*RESULTS@#The prevalence of successful ageing was 25.4% in this older population. Older adults aged 75-84 years and ≥ 85 years had 0.3 times and 0.1 times the odds of successful ageing, respectively, than those aged 60-74 years. Compared to older adults of Chinese ethnicity, those of Malay (odds ratio [OR] 0.6) and Indian (OR 0.5) ethnicities were less likely to be associated with successful ageing. Older adults with lower education levels, who had no formal education (OR 0.2), some schooling but did not complete primary education (OR 0.4) or only primary education (OR 0.5), had lower odds of ageing successfully than those with tertiary education.@*CONCLUSION@#Older adults in Singapore tend to have much more active engagement with life as compared to their counterparts from other countries. Further research into this population is needed, both in terms of qualitative research to gain a better understanding of successful ageing from the older adult's perspective, as well as longitudinal studies that explore behavioural determinants of successful ageing.

General Practitioner's Attitudes and Confidence in Managing Patients with Dementia in Singapore

The number of people living with dementia is increasing globally as a result of an ageing population. General practitioners (GPs), as the front-line care providers in communities, are important stakeholders in the system of care for people with dementia. This commentary describes a study conducted to understand GPs' attitudes and self-perceived competencies when dealing with patients with dementia and their caregivers in Singapore. A set of study information sheet and survey questionnaires were mailed to selected GP clinics in Singapore. The survey, comprising the "GP Attitudes and Competencies Towards Dementia" questionnaire, was administered. A total of 400 GPs returned the survey, giving the study a response rate of 52.3%. About 74% of the GPs (n=296) were seeing dementia patients in their clinics. Almost all the GPs strongly agreed that early recognition of dementia served the welfare of the patients (n=385; 96%) and their relatives (n=387; 97%). About half (51.5%) of the respondents strongly agreed or agreed that they felt confident carrying out an early diagnosis of dementia. Factor analysis of questionnaire revealed 4 factors representing "benefits of early diagnosis and treatment of patients with dementia", "confidence in dealing with patients and caregiver of dementia", "negative perceptions towards dementia care" and "training needs". GPs in Singapore held a generally positive attitude towards the need for early dementia diagnosis but were not equally confident or comfortable about making the diagnosis themselves and communicating with and managing patients with dementia in the primary care setting. Dementia education and training should therefore be a critical step in equipping GPs for dementia care in Singapore. Shared care teams could further help build up GPs' knowledge, confidence and comfort in managing patients with dementia.

Predictors of General Functioning and Correlates of Quality of Life: A Cross-Sectional Study among Psychiatric Outpatients

<p><b>INTRODUCTION</b>Functioning and quality of life (QOL) are negatively impacted as a result of mental illness. This study aimed to determine the: i) socio-demographic and clinical correlates of functioning and; ii) associations between functioning and QOL in a multiethnic sample of psychiatric outpatients.</p><p><b>MATERIALS AND METHODS</b>This was a cross-sectional study of outpatients receiving treatment from a tertiary psychiatric hospital. Functioning was assessed using the Global Assessment of Functioning (GAF) scale, while QOL was measured using the World Health Organization Quality of Life-BREF (WHOQOL-BREF) which comprises 4 domains: physical health, psychological health, social relationships and environment.</p><p><b>RESULTS</b>Various socio-demographic and clinical correlates were associated with functioning including employment and marital status, education and diagnosis. Depression was the only clinical characteristic which negatively correlated with functioning (= 0.035). Amongst the whole sample, multiple linear regressions revealed that functioning was positively associated with all 4 QOL domains (physical health [<0.001], psychological health [<0.001], social relationships [<0.001] and environment [<0.001]). Further analysis of each diagnostic group revealed that functioning was positively associated with all 4 QOL domains in the anxiety, depression and obsessive compulsive disorder subsamples, while in the schizophrenia subsample, functioning was only significantly associated with all environment domain.</p><p><b>CONCLUSION</b>Functional impairments were associated with different socio-demographic and clinical characteristics, which should be addressed when planning tailored treatment and interventions. Given that functioning is significantly associated with QOL, it is crucial to regularly assess and monitor them (in addition to symptomatic outcomes and adopting a more holistic and biopsychosocial approach).</p>

Comorbid Diabetes and Depression among Older Adults - Prevalence, Correlates, Disability and Healthcare Utilisation

<p><b>INTRODUCTION</b>The objectives of this current study were to: 1) examine the prevalence and correlates of diabetes mellitus (DM) among older adults (aged 60 years and above) in a multi-ethnic population; 2) examine the prevalence and correlates of comorbid DM and depression among them; and 3) assess the effect of comorbid depression on disability, cognition and healthcare utilisation.</p><p><b>MATERIALS AND METHODS</b>Data for the current study came from the Well-being of the Singapore Elderly (WiSE) study; a single phase, cross-sectional survey conducted among Singapore residents aged 60 years and above. A total of 2565 respondents completed the survey; depression was assessed using the Automated Geriatric Examination for Computer Assisted Taxonomy (AGECAT) while a diagnosis of DM was considered if respondents stated that a doctor had diagnosed them with DM.</p><p><b>RESULTS</b>DM was reported by 25.5% of the population. The prevalence of depression was significantly higher in those diagnosed with DM than those without DM (6% vs 3%). After adjusting for sociodemographic correlates, smoking and other chronic conditions, DM remained significantly associated with depression and subsyndromal depression. However, after including measures of functioning and cognitive impairment as covariates, DM was not significantly related to depression and subsyndromal depression. Those with comorbid DM and depression were more likely to be of Indian and Malay ethnicity, aged 75 to 84 years (versus 60 to 74 years) and widowed.</p><p><b>CONCLUSION</b>Given the significant association of certain sociodemographic groups with comorbid depression among those with DM, targeted interventions for prevention and early diagnosis in these groups should be considered.</p>

Prevalence and Risk Factors of Caregiver Dependence among Older Adults in a Southeast Asian Population

<p><b>INTRODUCTION</b>Currently very little is known about the prevalence or magnitude of caregiver dependence in Singapore and thus, there is a need to fill this gap in this multiethnic ageing population. This study aims to determine the prevalence and risk factors of caregiver dependence among older adults in Singapore.</p><p><b>MATERIALS AND METHODS</b>Data were used from the Well-being of the Singapore Elderly (WiSE) study, a nationally representative, cross-sectional survey among Singapore residents aged 60 years and above. Caregiver dependence was ascertained by asking the informant (the person who knows the older person best) a series of open-ended questions about the older person's care needs.</p><p><b>RESULTS</b>The older adult sample comprised 57.1% females and the majority were aged 60 to 74 years (74.8%), while 19.5% were 75 to 84 years, and 5.7% were 85 years and above. The prevalence of caregiver dependence was 17.2% among older adults. Significant sociodemographic risk factors of caregiver dependence included older age (75 to 84 years, and 85 years and above,<0.001), Malay and Indian ethnicity (<0.001), those who have never been married (= 0.048) or have no education (= 0.035), as well as being homemakers or retired (<0.001). After adjusting for sociodemographic variables and all health conditions in multiple logistic regression analyses, dementia (<0.001), depression (= 0.011), stroke (= 0.002), eyesight problems (= 0.003), persistent cough (= 0.016), paralysis (<0.001), asthma (= 0.016) and cancer (= 0.026) were significantly associated with caregiver dependence.</p><p><b>CONCLUSION</b>Various sociodemographic and health-related conditions were significantly associated with caregiver dependence. Dependent older adults will put greater demands on health and social services, resulting in greater healthcare expenditures. Hence, effective planning, services and support are crucial to meet the needs of dependent older adults and their caregivers.</p>

Prevalence of Depression among Older Adults-Results from the Well-being of the Singapore Elderly Study

<p><b>INTRODUCTION</b>Depression is a significant public health issue across all sociodemographic groups and is identified as a common and serious mental health problem particularly among the older adult population. The aims of the current study were to determine the prevalence of depression and subsyndromal depression among older adults in Singapore.</p><p><b>MATERIALS AND METHODS</b>The Well-being of the Singapore Elderly (WiSE) study was a comprehensive single phase, cross-sectional survey. Stage 1 Geriatric Mental State-Automated Geriatric Examination for Computer Assisted Taxonomy (GMS-AGECAT) depression syndrome was used for this analysis. Association of depression and subsyndromal depression with sociodemographic characteristics, social support as well as comorbidity with chronic physical illnesses and quality of life was assessed.</p><p><b>RESULTS</b>The prevalence of GMS-AGECAT depression and subsyndromal depression was 3.7% and 13.4%, respectively. The odds of depression were significantly higher among those aged 75 to 84 (2.1) as compared to those aged 60 to 74 years and in those who had a history of depression diagnosis by a doctor (4.1). The odds of depression were higher among those of Indian and Malay ethnicities (5.2 and 3.2 times, respectively) as compared to those of Chinese ethnicity. Those with depression and subsyndromal depression were associated with more disability, poorer life satisfaction, and medical comorbidities.</p><p><b>CONCLUSION</b>Our study suggests that the prevalence of depression seems to have decreased as compared to a decade ago wherein the prevalence of depression was estimated to be 5.5%. This positive trend can be ascribed to concerted efforts across various disciplines and sectors, which need to be continually strengthened, monitored and evaluated.</p>

Prevalence and Correlates of Internet Gaming Problem among Internet Users: Results from an Internet Survey

<p><b>INTRODUCTION</b>The current study aimed to establish the prevalence of internet gaming disorder (IGD) and its association with demographic characteristics, game genre, game use (time spent on gaming), as well as psychological distress, social phobia and well-being among current online gamers in Singapore.</p><p><b>MATERIALS AND METHODS</b>A total of 1251 participants aged 13 to 40 years completed the study which was administered as a web survey. The online questionnaire was designed using QuestionPro, and consisted of 8 sections and 105 questions. The 9-item Internet Gaming Disorder Questionnaire was used to establish the prevalence of IGD in the study. A series of logistic regression models were used to examine the associations between IGD, demographic characteristics and game genre, as well as IGD and psychological distress, social phobia and well-being.</p><p><b>RESULTS</b>The prevalence of IGD established using a cutoff of 5 among those who were current online gamers was 17.7%. Multiple logistic regressions revealed that those meeting criteria of IGD were more likely to be older, reported an earlier age of onset of playing online games, had primary and secondary education versus tertiary education, were currently students versus being currently employed and played massively multiplayer online role-playing games. Distress and social anxiety were higher while satisfaction with life was significantly lower among those who met criteria for IGD than those who did not meet the criteria.</p><p><b>CONCLUSION</b>The prevalence of IGD and its negative consequences in our sample of current online gamers was significant and point towards the need for further clinical studies and innovative interventions to address the problem.</p>

Socio-demographic Correlates of Positive Mental Health and Differences by Depression and Anxiety in an Asian Community Sample

<p><b>INTRODUCTION</b>Positive Mental Health (PMH) instrument is a self-administered multidimensional measure that is validated in the adult multi-ethnic Asian population in Singapore and comprises General Coping (GC), Emotional Support (ES), Spirituality, Interpersonal Skills (IS), Personal Growth and Autonomy (PGA) and Global Affect (GA) domains. This paper aimed to (i) examine socio-demographic differences and identify correlates for the total PMH and domain-specific scores in the sample, and (ii) compare the PMH total score for respondents with and without depression or anxiety.</p><p><b>MATERIALS AND METHODS</b>Singapore residents aged 21 to 65 years, of Chinese, Malay or Indian ethnicity and residing in households across Singapore (n = 404) completed the 47-item PMH instrument in an anonymous survey. Socio-demographic information was obtained during the survey and respondents also completed the Patient Health Questionnaire (PHQ)-8 and Generalised Anxiety Disorder (GAD)-7 scale to establish depression and anxiety. Descriptive analyses were conducted to examine for differences in PMH scores by socio-demographic groups and between those with and without depression and anxiety.</p><p><b>RESULTS</b>The total PMH score was significantly different across ethnicity and marital status in the bivariate analysis. After multivariate analysis, ethnicity remained a significant correlate for total PMH and the 6 domain-specific PMH scores, marital status correlated with Spirituality, educational level was associated with IS; while gender was associated with ES and PGA. Significantly lower PMH total scores were observed for those with depression and anxiety as compared to those without.</p><p><b>CONCLUSION</b>Socio-demographic correlates of PMH were identified in an Asian community sample. PMH scores were significantly lower among those with depression and anxiety.</p>

Where do people with mental disorders in Singapore go to for help?

<p><b>INTRODUCTION</b>This study aims to examine the pattern of services utilisation and the factors associated with help-seeking behaviour among those with mental disorders in the multi-ethnic Asian population of Singapore.</p><p><b>MATERIALS AND METHODS</b>A household survey was carried out on a nationally representative sample of the adult (18 years and above) resident population. The main instrument used to establish the diagnosis of mental disorders and the services sought was the Composite International Diagnostic Interview version 3.0 (CIDI 3.0). The 'services' component of the instrument contains questions, which examine service utilisation for mental health problems.</p><p><b>RESULTS</b>A total number of 6616 completed respondents constituted a representative sample of the adult resident population in Singapore. Only 31.7% of those with mental disorders had sought help: 15.7% from mental health providers, 8.4% from general practitioners, and 7.6% from religious/ spiritual advisors or other healers. Among respondents with severe disability across any disorder assessed in our survey, 50.1% had sought help from some service in the past 12 months. Individuals with moderate or mild levels had lower rates of consultation, i.e. 35.4% and 30.6% respectively. The rate of using the Internet as a source of help was low in this population.</p><p><b>CONCLUSION</b>There is a need to engage and work collaboratively with healthcare providers (including religious and spiritual healers) in the community to detect, assess and treat those with mental illness. More general practitioners need to be involved, and the role of the Internet also requires further consideration as a source for help.</p>

"How much can I take?": predictors of perceived burden for relatives of people with chronic illness

<p><b>INTRODUCTION</b>Chronic illnesses are common and have detrimental effects not only on the affected individuals but also on their families. These negative consequences on the physical and psychological health of caregivers constitute the burden of care. We investigate the predictors of perceived burden of care among relatives of people with any chronic physical or mental illness using secondary data from a nationwide survey in Singapore.</p><p><b>MATERIALS AND METHODS</b>A cross-sectional household survey was conducted among adult residents of age 18 years and above and data were analysed to explore the predictors of high perceived burden of care. Two thousand four hundred and fifty-eight respondents having at least 1 close relative with any chronic physical and/or mental illness were included.</p><p><b>RESULTS</b>Majority of the respondents had at least 1 close family member with physical illness (88.3%)--the most common illnesses reported were memory problems (86.9%), physical disability (74.8%), heart problems (70.1%) and cancer (62.2%). About 30.9% (n = 723) perceived high burden resulting from their relatives' health condition. Logistic analysis showed that women were more likely (OR 1.58, P = 0.0026) and Malays were less likely (OR 0.68, P = 0.0044) to perceive burden. Those who were able to open up to their family or friends (OR 1.65, P = 0.0162) and those who had dysthymia had higher odds (OR 4.91, respectively, P =0.0364) of perceiving burden.</p><p><b>CONCLUSION</b>Our results suggest that regardless of the nature of the chronic illnesses, gender or ethnicity, the capacity to open up to family or friends and the mental health status of caregivers can predict their perceived burden. The results provide valuable preliminary information for planning social policies and interventions for improving the well-being of caregivers.</p>

Policy implications of the Singapore Mental Health Study

This paper discusses the implications of the key findings of the Singapore Mental Health Study (SMHS) in the context of the fi rst ever National Mental Health Policy and Blueprint (NMHPB). The SMHS was a cross-sectional epidemiological survey of the adult Singapore residents. The policy implications emanating from the findings of this study are discussed in this commentary. These pertain to initiatives to improve help-seeking behaviour, further developing the capability of the primary healthcare providers and the better integration of primary and specialist mental healthcare. Incorporation of mental health education and screening of mental disorders in the workforce should also be augmented with work practices that protect against discriminating those with mental disorders.

Smoking and nicotine dependence in Singapore: findings from a cross-sectional epidemiological study

<p><b>INTRODUCTION</b>Smoking is one of the leading preventable causes of death throughout the world and can lead to nicotine dependence, particularly when initiated at a young age. This paper describes the prevalence of smoking and nicotine dependence in the adult Singapore resident population, whilst also exploring rates among the major ethnic groups (Chinese, Malay and Indian), different education levels and those with chronic psychiatric and physical comorbidities.</p><p><b>MATERIAL AND METHODS</b>The Singapore Mental Health Study (SMHS) is a cross-sectional epidemiological study that was conducted between December 2009 and December 2010. Information on smoking status was assessed using the Composite International Diagnostic Interview version 3.0 (CIDI 3.0) and the Fagerstrom Test for Nicotine Dependence measured nicotine dependence. Socio-demographic information was also collected.</p><p><b>RESULTS</b>In total, 6616 respondents participated in the SMHS giving a response rate of 75.9%. We found that 16% of the population were current smokers and 4.5% had nicotine dependence. Current smokers were more likely to be younger (18 to 34 years old), males, Malay and have lower education, whilst males had a 4.6 times higher risk of nicotine dependence to that of females. The prevalence of nicotine dependence was also higher in those with alcohol abuse and those experiencing chronic pain.</p><p><b>CONCLUSION</b>The results from this study highlight the important differences in the prevalence of smoking and nicotine dependence among different age groups, gender and ethnicity in Singapore and are important for developing future health policies and targeted preventive strategies.</p>

Prevalence and impact of mental and physical comorbidity in the adult Singapore population

<p><b>INTRODUCTION</b>This study aims to assess the prevalence rates of mental disorders and chronic medical conditions in the Singapore resident population, and examine their association and respective impact on the quality of life.</p><p><b>MATERIALS AND METHODS</b>A household survey was carried out on a nationally representative sample of the adult (18 years and above) resident population. The main instrument used to establish the diagnosis of mental disorders is the World Mental Health Composite International Diagnostic Interview (WMH-CIDI). The mental disorders included in study were major depressive disorder, bipolar disorder, generalised anxiety disorder, obsessive compulsive disorder, alcohol abuse and alcohol dependence. Respondents were asked if they had any of the chronic medical conditions from a list of 15 conditions. Health-related quality of life was assessed with the EQ-5D.</p><p><b>RESULTS</b>Of the 6616 respondents, the lifetime prevalence of mental disorders was 12.0%, and that of chronic medical disorders were 42.6% and those with comorbid mental and medical disorders was 6.1%. The prevalence of any physical disorder in this population was high (42.6%). Among those with chronic physical disorders, 14.3% also had a mental disorder, and among those with mental disorders, more than half (50.6%) had a medical disorder. Most of the mental disorders were not treated. Males, Indians, older people, and those who were separated or divorced were more likely to have comorbidity. The health-related quality of life was significant worse in those with both mental and medical disorders compared to those with either mental or medical disorder.</p><p><b>CONCLUSION</b>Our study re-emphasised the common occurrence of mental and medical disorders and the importance for an integrated care system with the capability to screen and treat both types of disorders. It also identified certain subpopulations which are more likely to have comorbidity for which a more targeted intervention could be planned.</p>