Table 1 Participants Characteristics (mean ± standard deviation)
Total Sample (n = 202) | Girls (n = 104) | Boys (n = 98) | p c | |
|---|---|---|---|---|
Age (months) | 19.74 ± 4.072 | 19.76 ± 4.05 | 19.71 ± 4.12 | 0.884 |
BMI (kg/m2) | 17.95 ± 1.64 | 17.78 ± 1.71 | 18.14 ± 1.56 | 0.427 |
BMI z-scores | 0.07 ± 0.93 | 0.06 ± 0.98 | 0.08 ± 0.89 | 0.934 |
Total physical activity (min/day) | 294.97 ± 59.03 | 289.98 ± 57.92 | 300.27 ± 60.02 | 0.109 |
Light physical activity (min/day) | 237.65 ± 44.92 | 235.95 ± 45.14 | 239.45 ± 44.86 | 0.351 |
Moderate to vigorous physical activity (min/day) | 57.32 ± 21.40 | 54.03 ± 18.42 | 60.82 ± 23.77 | 0.055 |
Sedentary time (min/day) | 262.77 ± 60.16 | 271.18 ± 59.97 | 253.85 ± 59.37 | 0.025 |
Screen time (min/day) | 76.38 ± 62.81 | 77.71 ± 71.98 | 74.97 ± 51.66 | 0.557 |
Sleep time (min/day)a | 739.66 ± 73.96 | 731.18 ± 72.25 | 784.66 ± 75.05 | 0.126 |
Consistency of bedtime (standard deviation of average bedtime in min)b | 44.71 ± 31.12 | 42.51 ± 23.42 | 47.05 ± 37.61 | 0.907 |
Consistency of wake up time (standard deviation of average wake up time in min)b | 45.56 ± 36.42 | 47.53 ± 45.8 | 43.5 ± 22.71 | 0.410 |
Accelerometer wear time (min/day) | 1297.40 ± 93.00 | 1292.34 ± 95.06 | 1302.78 ± 90.93 | 0.355 |