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Table 2 Sex and school-grade differences in domain-specific sedentary behavior in Japanese children, 2010 and 2014

From: School grade and sex differences in domain-specific sedentary behaviors among Japanese elementary school children: a cross-sectional study

  Males   Females   Sex School grade Sex × school grade
Lower grade Higher grade Lower grade Higher grade
mean SE mean SE mean SE mean SE F df η2 p F Df η2 p F df η2 p
Weekdays, min/week
 Reading or listening to music 53.0 14.9 88.6 8.2 81.7 14.2 111.1 8.9 5.27 1618 0.008 0.022 5.58 1618 0.009 0.018 0.08 1618 0.000 0.781
 TV or video viewing 505.3 43.2 520.1 23.9 495.8 41.3 582.6 25.9 0.67 1618 0.001 0.415 1.62 1618 0.003 0.204 1.27 1618 0.002 0.280
 TV game use 196.3 25.8 232.9 14.3 98.6 24.7 106.6 15.4 33.45 1618 0.051 0.000 0.88 1618 0.001 0.350 0.56 1618 0.001 0.454
 Computer use excluding class 2.5 8.4 33.9 4.7 5.5 8.1 35.4 5.0 0.01 1618 0.000 0.908 24.48 1618 0.038 0.000 0.13 1618 0.000 0.720
 Doing homework or assignments 206.5 22.2 260.2 12.2 247.3 21.2 302.0 13.3 6.18 1618 0.010 0.013 7.00 1618 0.011 0.008 0.00 1618 0.000 0.978
 Car travel 26.5 7.4 32.7 4.1 49.5 7.1 29.8 4.4 3.25 1618 0.005 0.072 0.99 1618 0.002 0.320 5.57 1618 0.009 0.019
Weekends, min/week
 Reading or listening to music 26.7 8.4 40.3 4.7 35.1 8.1 53.7 5.1 2.97 1618 0.005 0.085 4.21 1618 0.007 0.041 0.16 1618 0.000 0.689
 TV or video viewing 292.2 27.9 306.6 15.4 301.6 26.7 367.5 16.7 2.82 1618 0.005 0.094 2.41 1618 0.004 0.121 1.55 1618 0.003 0.213
 TV game use 147.0 16.8 159.8 9.30 77.1 16.1 89.2 10.1 30.93 1618 0.048 0.000 0.64 1618 0.001 0.423 0.00 1618 0.000 0.976
 Computer use excluding class 3.5 5.9 26.2 3.3 5.4 5.7 20.5 3.6 0.74 1618 0.001 0.391 25.6 1618 0.040 0.000 0.19 1618 0.000 0.666
 Doing homework or assignments 56.8 11.5 73.1 6.4 51.6 11.0 93.3 6.9 0.75 1618 0.001 0.386 7.37 1618 0.012 0.007 2.22 1618 0.004 0.137
 Car travel 68.5 10.2 60.5 5.6 86.1 9.7 78.8 6.1 5.55 1618 0.009 0.019 0.66 1618 0.001 0.417 0.00 1618 0.000 0.965
  1. Adjusted for z-scores of BMI, number of days with moderate to vigorous physical activity (MVPA) for at least 60 min, and geographic area
  2. SE standard error