Table 1.
Demographic characteristics of adolescents completing the survey and those selected to participate in the 6 online focus groups.
| Demographic characteristics | Survey (n=610) | Focus group 1 (n=64) | Focus group 2 (n=62) | Focus group 3 (n=64) | Focus group 4 (n=62) | Focus group 5 (n=62) | Focus group 6 (n=62) | |
| Age (years), mean (SD) | 15.3 (1.4) | 15.0 (1.4) | 15.0 (1.4) | 15.0 (1.4) | 15.0 (1.4) | 15.0 (1.4) | 15.0 (1.4) | |
| Gender (female), n (%) | 429 (70.3) | 36 (57) | 35 (57) | 36 (57) | 40 (65) | 42 (67) | 40 (65) | |
| Weight (kg), mean (SD) | 59.7 (8.0) | 58.2 (7.9) | 60.9 (8.3) | 57.9 (7.0) | 59.5 (9.8) | 60.7 (8.2) | 59.03 (6.6) | |
| Height (m), mean (SD) | 1.64 (0.07) | 1.64 (0.07) | 1.64 (0.07) | 1.63 (0.06) | 1.63 (0.07) | 1.64 (0.06) | 1.64 (0.07) | |
| BMIa (kg/m2), mean (SD) | 22.2 (8.0) | 21.4 (1.9) | 22.4 (2.07) | 21.6 (1.8) | 22.02 (2.4) | 22.4 (2.2) | 21.9 (1.8) | |
| Country, n (%) |
|
|
|
|
|
|
|
|
|
|
Greece | 97 (15.9) | 11 (17) | 11 (17) | 10 (15) | 10 (15) | 11 (17) | 10 (16) |
|
|
Singapore | 93 (15.2) | 11 (17) | 11 (17) | 11 (17) | 11 (17) | 9 (15) | 8 (14) |
|
|
Finland | 74 (12.1) | 11 (17) | 11 (17) | 10 (15) | 10 (15) | 9 (15) | 10 (16) |
|
|
United Kingdom | 163 (26.7) | 11 (17) | 11 (17) | 11 (17) | 11 (17) | 11 (17) | 12 (18) |
|
|
Belgium | 105 (17.2) | 11 (17) | 11 (17) | 11 (17) | 11 (17) | 11 (17) | 12 (18) |
|
|
New Zealand | 78 (12.8) | 9 (13) | 7 (13) | 11 (17) | 9 (15) | 11 (17) | 10 (16) |
| Parents’ higher education degree (yes), n (%) | 433 (71.0) | 46 (72) | 45 (72) | 43 (67) | 38 (61) | 45 (72) | 52 (83) | |
| Parents smoking (yes), n (%) | 152 (24.9) | 18 (27) | 17 (27) | 13 (20) | 20 (31) | 17 (27) | 18 (29) | |
| Current use of lifestyle apps (yes), n (%) | 189 (31.0) | 23 (36) | 22 (36) | 23 (36) | 17 (28) | 20 (32) | 29 (47) | |
aBMI: body mass index.