Interaction graphs of estimated change over time of primary and secondary outcomes (a-e).

<p>(a) Depression. (b) Anxiety. (c) Stress. (d) Knowledge. (e) Attitudes towards mental illness.</p

Rates (%) of recovered, improved, no change, and deteriorated between post-test and follow-up assessment for anxiety and stress symptoms, DASS21.

<p>Rates (%) of recovered, improved, no change, and deteriorated between post-test and follow-up assessment for anxiety and stress symptoms, DASS21.</p

Basic information of students separated by professional-led group, teacher-led group, and control group.

<p>Basic information of students separated by professional-led group, teacher-led group, and control group.</p

Demographics and usage of Internet platforms of all youths surveyed.

<p>Demographics and usage of Internet platforms of all youths surveyed.</p

Demographics and Internet usage pattern of youths who do and do not express distress online.

<p>Demographics and Internet usage pattern of youths who do and do not express distress online.</p

Expression of distress via Internet platforms and attitudes towards gaining support via the Internet in all youths surveyed (N = 1010).

<p>Expression of distress via Internet platforms and attitudes towards gaining support via the Internet in all youths surveyed (N = 1010).</p

Help-seeking behavior among youths with self-perceived distress (compared with the non-distressed group).

<p>Help-seeking behavior among youths with self-perceived distress (compared with the non-distressed group).</p