The Kimberley assessment of depression of older Indigenous Australians: prevalence of depressive disorders, risk factors and validation of the KICA-dep scale

This study aimed to develop a culturally acceptable and valid scale to assess depressive symptoms in older Indigenous Australians, to determine the prevalence of depressive disorders in the older Kimberley community, and to investigate the sociodemographic, lifestyle and clinical factors associated with depression in this population. Methods Cross-sectional survey of adults aged 45 years or over from six remote Indigenous communities in the Kimberley and 30% of those living in Derby, Western Australia. The 11 linguistic and culturally sensitive items of the Kimberley Indigenous Cognitive Assessment of Depression (KICA-dep) scale were derived from the signs and symptoms required to establish the diagnosis of a depressive episode according to the DSM-IV-TR and ICD-10 criteria, and their frequency was rated on a 4-point scale ranging from ‘never’ to ‘all the time’ (range of scores: 0 to 33). The diagnosis of depressive disorder was established after a face-to-face assessment with a consultant psychiatrist. Other measures included sociodemographic and lifestyle factors, and clinical history. Results The study included 250 participants aged 46 to 89 years (mean±SD = 60.9±10.7), of whom 143 (57.2%) were women. The internal reliability of the KICA-dep was 0.88 and the cut-point 7/8 (non-case/case) was associated with 78% sensitivity and 82% specificity for the diagnosis of a depressive disorder. The point-prevalence of a depressive disorder in this population was 7.7%; 4.0% for men and 10.4% for women. Heart problems were associated with increased odds of depression (odds ratio = 3.3, 95% confidence interval = 1.2,8.8). Conclusions The KICA-dep has robust psychometric properties and can be used with confidence as a screening tool for depression among older Indigenous Australians. Depressive disorders are common in this population, possibly because of increased stressors and health morbidities

The well-being of carers of older Aboriginal people living in the Kimberley region of remote Western Australia: Empowerment, depression, and carer burden

Objective: To describe demographic features and well-being of carers of Aboriginal Australians aged ≥45 years in remote Western Australia. Method: Carer burden, empowerment, and depression were assessed in 124 Aboriginal carers in four remote Aboriginal communities. Results: Carers were aged 38.8 ± 15.0 years, 73.4% were female, and 75.8% were children or grandchildren of the person cared for. The mean Zarit-6 score was 3.7 ± 3.6. Attending high school (odds ratio [OR] = 0.3; 95% confidence interval [CI] = [0.1, 0.7]) and feeling empowered (OR = 0.2; 95% CI = [0.1, 0.8]) were inversely associated with carer burden; female carers were less likely to feel empowered (OR = 0.4; 95% CI = [0.2, 0.9]); and empowerment was inversely associated with depression (OR = 0.3; 95% CI = [0.1, 0.7]). Discussion: Aboriginal carers in remote communities are relatively young and most are children or grandchildren. Carer burden was lower than anticipated. However, existing tools may not adequately measure Aboriginal perspectives. Education and empowerment are key factors which support programs must consider

Potentially suboptimal prescribing of medicines for older Aboriginal Australians in remote areas

OBJECTIVES: To investigate the prevalence of polypharmacy, under-prescribing and potentially inappropriate medicine use among Aboriginal Australians living in remote Western Australia. DESIGN: Cross-sectional study. SETTING: Six remote communities and the town of Derby in the Kimberley, Western Australia. PARTICIPANTS: Aboriginal people aged 45 years or more with complete medication histories. MAIN OUTCOME MEASURES: Proportions of patients with medicine histories indicating polypharmacy, potential under-prescribing of indicated medicines, or potentially inappropriate prescribing (including potential prescribing cascades or drug interactions). RESULTS: Complete medicine histories were available for 273 participants. The mean number of prescribed medicines was 5.1 (SD, 3.6). At least one form of suboptimal prescribing was identified for 166 participants (61%), including polypharmacy for 145 (53%), potential under-prescribing of at least one indicated medicine for 33 (12%), and potentially inappropriate prescribing for 54 participants (20%). Potential prescribing cascades or drug interactions were identified for 12 participants (4%). CONCLUSIONS: Potentially suboptimal prescribing affected more than half the participating older Aboriginal Australians from the Kimberley. If generalisable to other remote Indigenous Australians, the prevalence of polypharmacy, potentially inappropriate prescribing, and under-prescribing of indicated medicines is problematic, and suggests that older Indigenous people in remote areas are at risk of medicine-related harm

Strong Carers, Strong Communities: A cluster randomised controlled trial to improve wellbeing of family carers of older people in remote Aboriginal communities

Introduction: Unpaid carers have a crucial role in supporting older people with cognitive impairment and disability, but their own health and wellbeing are often impacted. There are limited data on how carer strain, depression and empowerment may be improved for carers. Methods: This was a cluster randomised controlled trial to compare the effect of a carer support program developed with a community-based participatory action research (PAR) approach to the delivery of information sessions to 100 carers of people aged 45 years or more living in four remote Aboriginal communities in Western Australia. Results: The mean age of carers was 38.3±14.9 years, 76% were female and 77% were children or grandchildren of the care recipient. Carer strain and empowerment measures did not change significantly between baseline and follow-up. A statistically significant decrease in depression scores was observed in the PAR group. However, decreases were observed in both the PAR and control groups, and the change in scores did not differ significantly between groups. Depression scores decreased most in those who had not attended high school. Overall, the proportion of participants meeting criteria for depression decreased from 18.8% at baseline to 8.3% at follow-up. Conclusion: A carer support program was of equivocal benefit, although this research demonstrates that the wellbeing of carers in remote Aboriginal communities can potentially be markedly improved by outreach strategies

Medications and cognitive risk in Aboriginal primary care: a cross‐sectional study

Background: Aboriginal and Torres Strait Islander people are ageing with high rates of comorbidity, yet little is known about suboptimal prescribing in this population. Aim: The prevalence of potentially suboptimal prescribing and associated risk factors were investigated among older patients attending primary care through Aboriginal Community Controlled Health Services (ACCHSs). Methods: Medical records of 420 systematically selected patients aged ≥50 years attending urban, rural and remote health services were audited. Polypharmacy (≥ 5 prescribed medications), potentially inappropriate medications (PIMs) as per Beers Criteria and anticholinergic burden (ACB) were estimated and associated risk factors were explored with logistic regression. Results: The prevalence of polypharmacy, PIMs and ACB score ≥3 was 43%, 18% and 12% respectively. In multivariable logistic regression analyses, polypharmacy was less likely in rural (odds ratio (OR) = 0.43, 95% confidence interval (CI) = 0.24–0.77) compared to urban patients, and more likely in those with heart disease (OR = 2.62, 95% CI = 1.62–4.25), atrial fibrillation (OR = 4.25, 95% CI = 1.08–16.81), hypertension (OR = 2.14, 95% CI = 1.34–3.44), diabetes (OR = 2.72, 95% CI = 1.69–4.39) or depression (OR = 1.91, 95% CI = 1.19–3.06). PIMs were more frequent in females (OR = 1.88, 95% CI = 1.03–3.42) and less frequent in rural (OR = 0.41, 95% CI = 0.19–0.85) and remote (OR = 0.58, 95% CI = 0.29–1.18) patients. Factors associated with PIMs were kidney disease (OR = 2.60, 95% CI = 1.37–4.92), urinary incontinence (OR = 3.00, 95% CI = 1.02–8.83), depression (OR = 2.67, 95% CI = 1.50–4.77), heavy alcohol use (OR = 2.83, 95% CI = 1.39–5.75) and subjective cognitive concerns (OR = 2.69, 95% CI = 1.31–5.52). High ACB was less common in rural (OR = 0.10, 95% CI = 0.03–0.34) and remote (OR = 0.51, 95% CI = 0.25–1.04) patients and more common in those with kidney disease (OR = 3.07, 95% CI = 1.50–6.30) or depression (OR = 3.32, 95% CI = 1.70–6.47). Conclusion: Associations between potentially suboptimal prescribing and depression or cognitive concerns highlight the importance of considering medication review and deprescribing for these patients

Sociodemographic and clinical characteristics of Indigenous Australians older than 45 years with and without a current depressive disorder.

<p>df = degrees of freedom.</p>n<p>number of participants in the group for whom data were missing.</p

Receiver operating characteristic (ROC) curve of KICA-Dep scores for the diagnosis of any depressive disorder according to ICD-10 Criteria for Research.

<p>A KICA-Dep cut-point of 7/8 (non-case/case) was associated with sensitivity of 78%, specificity of 82%, positive predictive value of 39% and negative predictive value of 96%. Sensitivity and specificity values for other cut-points were 89% and 63% for 4/5, 89% and 71% for 5/6, 78% and 80% for 6/7, 72% and 90% for 8/9, and 67% and 94% for 9/10.</p

Sociodemographic, lifestyle and clinical characteristics of older Indigenous Australians.

n<p>Number of participants for whom data were missing.</p