Table 1.

Selected data features.

Data characteristics	Percentage and numbers
Posts included for content analysis	76
Posts revealing no symptoms of depression, other conditions, or describing someone else	Not analyzed: 24% (24/100)
Depression interpretation	Unambiguous: 59% (45/76) Interpretable: 41% (31/76)
Secondary health care level, when specified	18% (14/76)
Comorbidity described	34% (26/76)
Gender (entire sample, 100 posts)	Boys: 23% (22/97) Girls: 77% (75/97) Not specified: 3 posts
Age (entire sample, 100 posts)	16 years: 31% (31/100) 17 years: 24% (24/100) 18 years: 13% (13/100) 19 years: 22% (22/100) 20 years: 10% (10/100)
Mean word count per post (entire sample, 100 posts)	180 (17,997/100)