Table 3: COAST data structure and linkages.

Name of dataset	Data repository	Data stewardship	Description
Population-level cohort data
Drug Treatment Program [35]	BC-CfE	BC-CfE	Longitudinal data on ART use, clinical outcomes, viral load, resistance testing
LISA [36]	BC-CfE	BC-CfE	Questionnaire-based data on a cohort of PLHIV, includes demographic, socioeconomic, substance, and health data
Momentum Health Study [37]	BC-CfE	BC-CfE	Questionnaire-based data collected among HIV-positive and HIV-negative gay, bisexual, and other MSM in Vancouver, includes sociodemographic and HIV prevention data
Administrative health data
Consolidation File [38]	PopData	BC-MoH	Basic demographics such as age and sex, residence, and registration data
Discharge Abstracts Database [39]	PopData	BC-MoH	Records of discharges, transfers and deaths from BC hospitals
Medical Services Plan [40]	PopData	BC-MoH	Diagnosis codes, laboratory and diagnostic procedures
PharmaNet [41]	PopData	BC-MoH	Drug identifiers, costs, prescription date and length, dosages
Vital Statistics Deaths [42]	PopData	BC Vital Statistics	Records of all deaths in BC; includes date, place and cause of death
BC Cancer Registry [43]	PopData	BC Cancer	Records of all cancers reported to the BC Cancer Registry
Mental Health Services [44]	PopData	BC-MoH	Diagnostic codes, care episodes, and service events

Abbreviations: BC: British Columbia; UBC: University of British Columbia; MoH: Ministry of Health; BC-CfE: British Columbia Centre for Excellence in HIV/AIDS; LISA: Longitudinal Investigation into Supportive and Ancillary Health Service; PopData: Population Data BC; CANUE: Canadian Urban Environmental Health Research Consortium.