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. 2017 Aug 14;25(6):653–660. doi: 10.1007/s10389-017-0823-2

Table 1.

Characteristics of study sample by sex

Total (n = 613) Girls (n = 321) Boys (n = 292) P value
Age (years) 11.88 ± .53 11.89 ± .52 11.87 ± .53 .659
Body mass index (kg/m2) 19.41 ± 3.44 19.23 ± 3.06 19.58 ± 3.73 .196
KIDMED 7.40 ± 1.93 7.43 ± 1.82 7.37 ± 2.05 .157
PAQ-C 3.03 ± .60 2.89 ± .56 3.19 ± .61 .000**
VO2max (ml/kg/min) 42.61 ± 8.58 39.96 ± 7.63 45.70 ± 7.69 .000**
Screen time (hours) 1.60 ± .92 1.59 ± .91 1.60 ± .93 .913
Hours of nightly sleep (hours) 9.39 ± 1.33 9.34 ± 1.31 9.44 ± 1.36 .397

*P < 0.05; **P < 0.01