Table 2 Descriptive characteristics of study participants (n = 367) by means of frequencies, mean (SD) and median (IQR)
Girls | Boys | Children | Adolescents | Total | |
|---|---|---|---|---|---|
Population (%) | 192 (52.3) | 175 (47.7) | 219 (59.7) | 148 (40.3) | 367 (100) |
Mean age (SD) | 13.2 (1.2) | 13.1 (1.1) | 12.4 (0.7) | 14.3 (0.7) | 13.2 (1.2) |
Mean BMI (SD) a | 18.9 (3.3) | 18.6 (3.0) | 18.4 (3.3) | 19.3 (2.8) | 18.8 (3.2) |
Parental employment status b | |||||
Both parents employed (%) | 98 (52.7) | 100 (59.2) | 117 (55.5) | 81 (56.3) | 198 (55.8) |
One or both unemployed (%) | 88 (47.3) | 69 (40.8) | 94 (44.5) | 63 (43.7) | 157 (44.2) |
Ethnicity c | |||||
Danish background (%) | 61 (32.4) | 73 (42.4) | 81 (37.5) | 53 (36.8) | 134 (37.2) |
Immigrant or descendent (%) | 127 (67.6) | 99 (57.6) | 135 (62.5) | 91 (63.2) | 226 (62.8) |
Median daily hours of combined accelerometer and GPS data (IQR) | 12.9 (11.9-13.6) | 12.5 (11.4-13.4) | 12.6 (11.9-13.5) | 12.7 (11.3-13.6) | 12.7 (11.6-13.5) |
Mean valid days (SD) d | 2.5 (1.1) | 2.5 (1.1) | 2.6 (1.1) | 2.4 (1.0) | 2.5 (1.1) |