Joanne C Enticott1,2, Elizabeth Lin3,4,5, Frances Shawyer1, Grant Russell6,7,8, Brett Inder9, Scott Patten10, Graham Meadows1,11,12. 1. 1 Southern Synergy, Department of Psychiatry, Monash University, Dandenong, VIC, Australia. 2. 2 Royal District Nursing Service Institute, St Kilda, VIC, Australia. 3. 3 Center for Addiction and Mental Health (CAMH), Toronto, ON, Canada. 4. 4 University of Toronto, Toronto, ON, Canada. 5. 5 Institute for Clinical Evaluative Sciences (ICES), Toronto, ON, Canada. 6. 6 School of Primary and Allied Health Care, Monash University, Melbourne, VIC, Australia. 7. 7 Southern Academic Primary Care Research Unit, Monash University, Melbourne, VIC, Australia. 8. 8 Department of Family Medicine, University of Ottawa, ON, Canada. 9. 9 Department of Econometrics and Business Statistics, Monash University, Melbourne, VIC, Australia. 10. 10 University of Calgary, Calgary, AB, Canada. 11. 11 Monash Health, Melbourne, VIC, Australia. 12. 12 Melbourne School of Population and Global Health, University of Melbourne, Parkville, VIC, Australia.
Abstract
OBJECTIVE: To compare equivalent population-level mental health indicators in Canada and Australia, and articulate recommendations to support equitable mental health services. These are two somewhat similar resource-rich countries characterized by extensive non-metropolitan and rural regions as well as significant areas of socioeconomic deprivation. METHODS: A cross-national epidemiology and equity study: primary outcome was Kessler Psychological Distress Scale (K10) in recent national surveys. A secondary outcome was mental disorders rate since these surveys were 5-years apart. RESULTS: Elevated distress, defined by K10 scores (0-40 range) of 12 and over, affected 11.1% Australians and 12.0% Canadians. Elevated distress in both countries affected more people in the lowest income quintile (21-27%) compared to the richest (6%). In the lowest income quintile, 1-in-4 Australians and 1-in-5 Canadians reported elevated distress - twice the national average in both countries. Australians in the lowest income quintile (over 5 million people) have a significantly higher risk by over a 5% for elevated distress compared to their low-income Canadian counterparts. After adjusting for effects of age and gender, the relative odds in the lowest quintile compared to richest was 6.4 for Australians and 3.5 for Canadians, which remained significantly different thus confirming greater inequity in Australia. Mental disorders affected approximately 1-in-10 people in both countries. CONCLUSIONS: This adds to the mental health prevalence monitoring in these two countries by supporting an overall prevalence of elevated distress in approximately 1-in-10 people. It supports large-scale public health interventions that target elevated distress in people with low incomes to order to achieve the biggest impact, and, to reduce the greater inequity in mental health indicators in Australians, policy-makers should consider eliminating gap-fees as they are illegal in Canada. As encouraged by World Health Organization, we highlight the importance of such population-level studies so that cross-national results can be reliably compared.
OBJECTIVE: To compare equivalent population-level mental health indicators in Canada and Australia, and articulate recommendations to support equitable mental health services. These are two somewhat similar resource-rich countries characterized by extensive non-metropolitan and rural regions as well as significant areas of socioeconomic deprivation. METHODS: A cross-national epidemiology and equity study: primary outcome was Kessler Psychological Distress Scale (K10) in recent national surveys. A secondary outcome was mental disorders rate since these surveys were 5-years apart. RESULTS: Elevated distress, defined by K10 scores (0-40 range) of 12 and over, affected 11.1% Australians and 12.0% Canadians. Elevated distress in both countries affected more people in the lowest income quintile (21-27%) compared to the richest (6%). In the lowest income quintile, 1-in-4 Australians and 1-in-5 Canadians reported elevated distress - twice the national average in both countries. Australians in the lowest income quintile (over 5 million people) have a significantly higher risk by over a 5% for elevated distress compared to their low-income Canadian counterparts. After adjusting for effects of age and gender, the relative odds in the lowest quintile compared to richest was 6.4 for Australians and 3.5 for Canadians, which remained significantly different thus confirming greater inequity in Australia. Mental disorders affected approximately 1-in-10 people in both countries. CONCLUSIONS: This adds to the mental health prevalence monitoring in these two countries by supporting an overall prevalence of elevated distress in approximately 1-in-10 people. It supports large-scale public health interventions that target elevated distress in people with low incomes to order to achieve the biggest impact, and, to reduce the greater inequity in mental health indicators in Australians, policy-makers should consider eliminating gap-fees as they are illegal in Canada. As encouraged by World Health Organization, we highlight the importance of such population-level studies so that cross-national results can be reliably compared.
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