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Mental healthcare utilisation among individuals with colorectal cancer: population-based cohort studies
Vicki Cheng1,2, Eric C Sayre3, Vienna Cheng1,2
1The Faculty of Pharmaceutical Sciences, The University of British Columbia, Vancouver, British Columbia, Canada.
Objective:
Individuals with colorectal cancer (CRC) have an increased risk of mental disorders, yet mental healthcare utilisation has not been adequately examined. We evaluated mental healthcare utilisation and receipt of minimally adequate treatments for anxiety and/or depression among individuals with and without CRC.
Methods And Analysis:
We used administrative health databases from British Columbia, Canada, comprised of individuals with CRC and individuals without CRC, matched (1:1 ratio) on age, sex and incident mental disorder(s) (ie, occurring after CRC diagnosis/matched date). Primary outcomes were minimally adequate antidepressant pharmacotherapy (≥84 days' supply) and psychological (≥4 services) treatment.
Results:
Among individuals with CRC, 1462 had incident anxiety (mean age 64.6±12.5 years, 59.2% females), 4640 had incident depression (mean age 66.3±12.3 years, 51.2% females). Approximately one in four individuals with CRC were diagnosed with anxiety (23.4%) and/or depression (23.2%) in the first year after CRC diagnosis. Minimally adequate antidepressant pharmacotherapy (36.2%) and psychological treatment (15.9%) for anxiety were significantly lower in CRC patients than in those without CRC (pharmacotherapy adjusted OR (aOR) 0.74; 95% CI 0.61, 0.88; psychological treatment aOR 0.74; 95% CI 0.58, 0.95). Similar findings were observed for depression (pharmacotherapy aOR 0.81; 95% CI 0.74, 0.90). Among individuals with CRC, mental healthcare utilisation persisted up to 10 years post-mental disorder diagnosis.
Conclusions:
Individuals with CRC receive less mental health treatment for anxiety and/or depression, compared with those without CRC. Findings raise awareness for the need for ongoing mental healthcare throughout and beyond CRC.
