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Table 2 Physical activity and sedentary behavior of Chinese children aged 6–17 years

From: Physical activity and sedentary behavior among Chinese children aged 6–17 years: a cross-sectional analysis of 2010–2012 China National Nutrition and health survey

  Total Gender P Age(years) P Areas P
Boys Girls 6–12 13–17 Big Cities Medium and small Cities Ordinary rural areas Poor rural areas
School days per weeka 5.2 ± 0.02 5.2 ± 0.02 5.2 ± 0.02 0.7263 5.0 ± 0.01 5.3 ± 0.03 < 0.0001 5.1 ± 0.03 5.1 ± 0.02 5.2 ± 0.03 5.2 ± 0.047 0.0531
school-time PA(min/d)a 61.6 ± 1.71 62.3 ± 1.87 60.8 ± 1.57 0.0093 60.6 ± 1.38 62.8 ± 2.36 0.1585 60.2 ± 2.61 64.8 ± 3.43 58.0 ± 2.11 61.6 ± 3.098 0.3848
school-time PA ≥ 60 min/d(%,95CI) 52.5 (48.3~56.7) 52.8 (48.6~57.1) 52.1 (47.9~56.3) 0.2801 52.3 (48.0~56.6) 52.7 (48.1~57.4) 0.7932 49.9 (43.3~56.4) 56.0 (49.6~62.5) 51.4 (43.9~58.9) 47.0 (37.0~56.9) 0.3412
Transportation time (min/d)a 38.5 ± 0.83 38.6 ± 0.84 38.4 ± 0.87 0.5563 37.7 ± 0.90 39.5 ± 1.01 0.0494 41.9 ± 1.15 38.7 ± 1.34 35.4 ± 1.23 43.3 ± 2.549 0.0007
Transportation form(%,95CI)     0.0003    < 0.0001      < 0.0001
 Walking 50.9 (47.3~54.5) 51.0 (47.3~54.6) 50.8 (47.2~54.4)   55.6 (51.6~59.7) 45.0 (41.3~48.8)   46.8 (41.4~52.2) 45.2 (39.6~50.7) 48.7 (42.1~55.4) 70.6 (62.7~78.6)  
 Cycling 13.3 (11.2~15.4) 14.1 (12.0~16.2) 12.3 (10.2~14.5)   7.4 (5.9~8.8) 20.5 (17.2~23.8)   11.3 (7.8~14.88) 14.6 (11.0~18.3) 14.5 (10.8~18.2) 8.2 (4.9~11.6)  
 Public transit 16.4 (14.1~18.7) 16.1 (13.8~18.5) 16.7 (14.3~19.1)   11.4 (9.2~13.6) 22.6 (19.1~26.0)   24.6 (21.3~27.8) 17.1 (13.1~21.1) 17.0 (13.2~20.8) 10.6 (6.0~15.1)  
 Private vehicles 19.4 (16.7~22.1) 18.8 (16.1~21.5) 20.1 (17.3~22.9)   25.6 (22.0~29.2) 11.9 (9.6~14.1)   17.3 (13.5~21.1) 23.1 (18.1~28.1) 19.8 (15.8~23.8) 10.5 (5.0~16.1)  
Domestic PA(%,95CI) 69.6 (66.8~72.4) 66.1 (63.0~69.1) 73.6 (71.0~76.3) < 0.0001 62.5 (59.0~65.9) 78.4 (75.9~80.9) < 0.0001 73.3 (70.0~76.5) 68.9 (64.6~73.1) 67.9 (62.3~73.5) 73.6 (68.2~79.1) 0.3238
Domestic PA time(min/d)a 17.2 ± 0.66 15.7 ± 0.70 18.9 ± 0.66 < 0.0001 13.6 ± 0.58 21.6 ± 0.85 < 0.0001 17.8 ± 1.09 15.5 ± 0.81 16.1 ± 0.96 23.3 ± 2.685 0.0274
Sedentary time(h/d)a 2.9 ± 0.04 2.9 ± 0.04 2.9 ± 0.05 0.7832 2.6 ± 0.04 3.2 ± 0.07 < 0.0001 3.2 ± 0.05 3.0 ± 0.07 2.8 ± 0.07 2.7 ± 0.111 < 0.0001
Sedentary time ≥ 2 h/d(%,95CI) 85.8 (83.8~87.7) 85.9 (83.9~87.9) 85.6 (83.6~87.6) 0.3755 83.0 (80.7~85.2) 89.2 (87.1~91.2) < 0.0001 90.0 (88.0~91.9) 86.6 (83.5~89.7) 86.4 (83.3~89.5) 80.9 (75.3~86.5) 0.0505
Homework time(h/d)a 1.5 ± 0.03 1.4 ± 0.03 1.5 ± 0.03 < 0.0001 1.2 ± 0.02 1.8 ± 0.05 < 0.0001 1.8 ± 0.05 1.6 ± 0.06 1.4 ± 0.05 1.3 ± 0.062 < 0.0001
  1. aData was described as mean ± SE