Table A2.

Description of Outcome Variables Included in Study.

Name of Variable	Level of Measurement	Survey Question	Description
Depressive Thoughts in the Past Month	Binary (Yes, No)	“During the past month, about how often did you feel sad or depressed?”	Those who responded all of the time, most of the time, some of the time were coded into the “yes” group. All other respondents were coded into the “no” group.
Major Depressive Episodes in the Past Year	Binary (Yes, No)	The Composite International Diagnostic Interview Short Form (CIDI-SF) measures Major Depressive Episodes (MDE). This subset of questions assesses the depressive symptoms of respondents who felt depressed or lost interest in things for 2 weeks or more in the last 12 months. Respondents are screened into the CIDI-SF based on affirmative responses to the following 2 screening questions, if a respondent answers affirmatively to the screening questions, their depression level is measured based on 7 additional questions.	The classification of depression is based on an affirmative response to the original screening question and 5 out of 9 of the depression questions. This corresponds to a 90% predictive probability of caseness, which closely aligns with the DSM-5 diagnostic guidelines for MDE in adults [53]. This probability expresses the chance that the respondent would have been diagnosed as having experienced a Major Depressive Episode in the past 12 months had they completed the CIDI Long-Form [30].
Anxiety Disorder	Binary (Yes, No)	“Do you have an anxiety disorder such as phobia, obsessive-compulsive disorder or a panic disorder?”	Respondents are reminded that the question is only referring to those conditions diagnosed by a health professional.
Mood Disorder	Binary (Yes, No)	“Do you have a mood disorder such as depression, bipolar disorder, mania or dysthymia?”	Respondents are reminded that the question only refers to those conditions diagnosed by a health professional.
Suicidal Thoughts in the Past Month	Binary (Yes, No)	“Have you ever seriously considered committing suicide or taking your own life? Has this happened in the past 12 months?”	This variable was recoded into a dichotomous variable. In addition, those who answered “not applicable: were coded into the “no” group, given they answered negatively to this question in an earlier prompt.
Self-Reported Mental Health Status	Binary (Fair/Poor, Good/Very Good/Excellent)	“In general, would you say your mental health is: excellent, very good, good, fair, or poor?”	This variable was recoded into a dichotomous variable. “Fair/poor” or “Good/very good/excellent”. This variable has been validated and is a reliable measure of general mental health [54].