Table 2 Characteristics of included studies and demographics of participants (N = 80)
Characteristics | n | % (of total N = 80) |
|---|---|---|
Study location | ||
 USA | 31 | 39.0 |
 UK | 10 | 12.7 |
 Australia | 7 | 8.9 |
 Spain | 5 | 6.3 |
 Other | 26 | 32.9 |
Participant demographics | ||
 Gender | ||
  Females only | 10 | 12.7 |
  Males only | 2 | 2.5 |
  Mixed genders | 67 | 84.8 |
Other populations/groups | ||
 Physical disability | 2 | 2.5 |
 Intellectual disability e.g. ADHD | 1 | 1.3 |
 At risk of morbidity i.e. obesity, diabetes, CHD | 6 | 7.6 |
 Low-income/socio-economic community | 2 | 2.5 |
 Low activity level | 3 | 3.8 |
 Parents of adolescents | 10 | 12.7 |
 Other key adult informants (not specified) | 1 | 1.3 |
Race or ethnicity reporteda | ||
 Mixed/ range of ethnicities | 6 | 7.6 |
 Asian or pacific islander | 4 | 5.0 |
 Latin America/ Hispanic | 11 | 13.9 |