List of questions asked.

a The original source of most of the questions used was the 9-item patient health questionnaire (PHQ-9) [62].
b While we asked these two questions separately, they are a single question in the original PHQ-9.
c These three questions were used to determine suicide risk.
d The original source of the questions used was the 7-items regarding anxiety contained within the Hospital Anxiety and Depression Scale [66].
e The original source of the questions was the CRAAFT questionnaire which is well validated for use in youth [77], [78]. It is named the CRAFFT scale because of the 6 questions relating to specific risks involved with drug and alcohol abuse (in our study they were questions 4–9, with the key words involved in the acronym shown in capital letters).
f For these scales a higher score is better (for both self-esteem and quality-of-life) in contrast to the other scales.
List of questions asked.