Country Stratification and number of FGDs Sample size in each group Data collection modality
Ghent, Belgium Sex (n=2):
1 Boy
1 Girl
Boys: 9
Girls: 13
Online at home
Sao Paulo, Brazil Sex and mixed (n=7):
1 Boy
1 Girl
5 Mixed
Boys: 5
Girls: 4
Mixed: 24
In-person at clinic
Shanghai, China Sex and age (n=4):
1 Older girls
1 Younger girls
1 Older boys
1 Younger boys
Older girls: 10
Younger girls: 10
Older boys: 10
Younger boys: 10
In-person at school
Kinshasa, DRC Sex (n=4):
2 Boys
2 Girls
Boys: 16
Girls: 14
In-person at school
Semarang and Denpasar, Indonesia Sex and Socio-economic Status (SES) (n=8):
1 Higher SES girls in Semarang
1 Lower SES girls in Semarang
1 Higher SES boys in Semarang
1 Lower SES boys in Semarang

1 Higher SES girls in Denpasar
1 Lower SES girls in Denpasar
1 Higher SES boys in Denpasar
1 Lower SES boys in Denpasar
Semarang:
Higher SES boys: 9
Higher SES girls: 10
Lower SES boys: 8
Lower SES girls: 8

Denpasar:
Higher SES boys: 6
Higher SES girls: 7
Lower SES boys: 10
Lower SES girls: 8
Online at home
Blantyre, Malawi Sex and age (n=4):
1 Older girls
1 Younger girls
1 Older boys
1 Younger boys
Older boys: 9
Older girls: 8
Younger boys: 7
Younger girls: 10
In-person at school
New Orleans, USA Sex (n=3):
2 boys
1 girl
Boys: 8
Girls: 4
Online at home