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

Table 2.

Differences in body mass index, lifestyles and maximal oxygen uptake between northern and southern children

Northern girls (n = 161) Southern girls (n = 160) P value Northern boys (n = 168) Southern boys (n = 124) P value
Age (years) 11.75 ± 0.37 12.02 ± 0.61 0.000** 11.72 ± 0.37 12.06 ± 0.65 0.000**
Body mass index (kg/m2) 19.47 ± 2.73 18.97 ± 3.36 0.145 19.66 ± 3.42 19.49 ± 4.13 0.704
KIDMED 7.22 ± 1.74 7.64 ± 1.88 0.041* 7.10 ± 2.00 7.73 ± 2.07 0.008**
PAQ-C 2.81 ± 0.52 2.97 ± 0.59 0.013* 3.16 ± .55 3.24 ± 0.67 0.287
VO2max (ml/kg/min) 42.99 ± 3.60 35.75 ± 9.53 0.000** 46.57 ± 5.18 44.08 ± 10.75 0.042*
Screen time (hours) 1.55 ± 0.81 1.68 ± 1.09 0.328 1.60 ± 0.93 1.59 ± 0.94 0.896
Hours of nightly sleep (hours) 9.54 ± 0.66 9.15 ± 1.71 0.008** 9.64 ± 0.79 9.15 ± 1.85 0.007**

*P < 0.05; **P < 0.01