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Table 3 Mixed effects estimates on sedentary behavior (SB) levels (MET-hrs/wk) among Chinese children, coefficient (95% CI)

From: Age, period and cohort effects and the predictors of physical activity and sedentary behaviour among Chinese children, from 2004 to 2011

SB Model 1 Model 2 Model 3 Model 4
Age 0.64(0.34,0.95) 0.53(0.22,0.84) 0.57(0.25,0.89) 0.49(0.17,0.81)
Survey year (ref: 2004)
 2006 −1.99(−7.56,3.57) −0.82(−6.45,4.8) −1.14(−7,4.72) −0.28(−6.22,5.66)
 2009 7.41(1.43,13.38) 6.8(0.82,12.79) 6.54(0.39,12.69) 5.86(−0.33,12.04)
 2011 2.97(−2.4,8.34) 0.86(−5.04,6.75) 2.61(−2.85,8.08) 1.24(−4.79,7.27)
2006*Age 0.45(0.00,0.89) 0.45(0.00,0.9) 0.37(−0.10,0.84) 0.39(−0.09,0.86)
2009*Age −0.26(−0.75,0.23) −0.19(−0.69,0.3) −0.25(−0.75,0.26) −0.15(−0.66,0.36)
2011*Age 0.30(−0.14,0.74) 0.23(−0.26,0.71) 0.16(−0.29,0.61) 0.12(−0.37,0.61)
Gender −0.95(−2.12,0.22) −0.89(−2.1,0.32) −0.69(−1.86,0.49) −0.54(−1.77,0.69)
Inverse Mill’s Ratio   −3.64(−5.61,-1.68)   −3.21(−5.25,-1.17)
Community Urbanicity   0.11(0.08,0.14)   0.06(0.03,0.10)
Bicycle ownership    0.50(−0.68,1.68) 0.37(−0.86,1.6)
Vehicle ownership    −0.87(−2.04,0.31) 0.06(−1.18,1.3)
No of Computers    3.43(2.28,4.58) 2.41(1.12,3.71)
No of Household members    −1.12(−1.56,-0.67) −0.89(−1.36,-0.42)
Overweight/Obese    1.32(0.00,2.64) 1.5(−0.14,3.13)
Household income    1.45(0.63,2.28) 0.93(0.04,1.81)
Number of observations 5697 5319 4532 4177
Number of individuals 3528 3162 3022 2676
  1. Notes: Data from CHNS 2004–2011; bold values denote statistical significance at p < 0.05