Table 1

Overview of study measures

Domain assesse	Reference	Survey measure	Number of items per measure	Screener	Baseline	6 month follow-up	12 month follow-up
Age	–	Age	1	X
Level of education	–	Education	1	X
Income	–	Income	4	X
Marital status	–	Marital status	1
Language	–	Language	1	X
Housing	–	Housing	1	X
Employment	–	Employment	13	X	X	X	X
Number of children living in household	–	Number of children (<18) living in household	1	X
Sexual orientation	9	Sexual orientation	1		X
Sexual behaviour	71	Sexual behaviour	1		X
Sex assigned at birth	9	Sex assigned on birth certificate	1	X
Gender identity	9	Current gender identity	Gender identity	1	X
Race/ethnicity	–	Current racial/ethnic identity	1	X
Insured status	–	Insurance status	1		X	X	X
Depressive disorders	69	CAT-MH (depression module with DSM-5 specifier)	Max of 94 questions; module was adaptive		X	X	X
Bipolar disorder	69	CAT-MH (mania module)	Max of 11 questions; module was adaptive		X
Generalised anxiety disorder	69	CAT-MH (anxiety module)	Max 13 questions; module was adaptive		X
Suicidality	69	CAT-MH (suicide module)	Max of 3 questions; module was adaptive		X	X	X
Psychosis	34	Single item inquiring about schizophrenia diagnosis	1		X		X
PTSD	73	PTSD checklist for DSM-5	4		X		X
Chronic medical conditions	66	MOS 36	18		X
HIV testing status	72	HIV testing status	8		X		X
Stressful life events	42	Stressful life events	15		X	X	X
Social support	77	Social support	10		X	X	X
Everyday discrimination scale	78	Discrimination	16		X		X
Internalised homonegativity	79 80	Internalised homophobia	6		X		X
Outness Scale	81	Outness to social circle	18		X		X
Use of alcohol/drugs	74 75	Alcohol/drug use	14		X		X
General hospital services	34 35	General health services	13		X	X	X
Mental health services		Mental health services	7		X	X	X
Substance abuse services		Substance abuse services	6		X	X	X
Social & community-based services for depression/mental health		Community-based services	7		X	X	X
Psychotropic medication	70	Medications	25		X	X	X
Depressive symptoms (8-item patient health questionnaire score)	64	Depression symptoms	8	X	X	X	X
Mental wellness	67 68	MHI-5, MOS 36	4		X	X	X
Mental health	66 67	SF-12 -functioning (MCS-12 mental health composite score & PCS-12 physical health composite score)	15		X	X	X

CAT-MH, Computerised Adaptive Test-Mental Health; MCS, mental composite score; MHI, Mental Health Inventory; MOS, Medical Outcomes Study; PCS, physical composite score; PTSD, post-traumatic stress disorder; SF-12, 12-item short-form health survey.