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Table 2 Factors associated with and overweight & obesity or obesity on bivariate analyses*

From: Lifestyle factors associated with childhood obesity: a cross-sectional study in Shanghai, China

  Non-overweight Overweight & obese Obese
  n(row%) OR 95% CI P n(row%) OR 95% CI P n(row%) OR 95% CI P
Screen time (hrs./day)             
≤2 (ref) 1470(74.2)    0.01 510(25.8)    0.01 206(10.4)    <0.01
2-3 160(69.0) 0.77 0.57-1.04 72(31.0) 1.30 0.97-1.74 28(12.1) 1.18 0.78-1.80
>3 76(63.3) 0.60 0.41-0.88 44(36.7) 1.67 1.14-2.45 28(12.1) 2.62 1.68-4.10
Physical activity (hrs./day)             
≤2(ref) 1396(73.8)    0.32 495(26.2)    0.32 197(10.4)    0.04
2-3 197(70.4) 0.84 0.64-1.11 83(29.6) 1.19 0.90-1.57 42(15.0) 1.52 1.06-2.17
>3 113(70.2) 0.84 0.59-1.19 48(29.8) 1.20 0.84-1.71 23(14.3) 1.43 0.90-2.28
Modes of travel to/from school             
Inactive (others) (ref) 836(74.0)    0.33 293(26.0)    0.33 117(10.4)    0.22
Active (walking) 838(72.2) 0.91 0.76-1.10 322(27.8) 1.18 0.91-1.53 139(12.0) 1.10 0.91-1.32
SSB (cps/wk.)             
≤2(ref) 1086(74.3)    0.26 375(25.7)    0.26 152(10.4)    0.25
2-5 179(71.9) 0.88 0.65-1.19 70(28.1) 1.13 0.84-1.53 28(11.2) 1.09 0.71-1.67
5-7 341(73.8) 0.97 0.77-1.24 121(26.2) 1.03 0.81-1.30 51(11.0) 1.07 0.76-1.50
>7 81(66.4) 0.68 0.46-1.01 41(33.6) 1.47 0.99-2.17 20(16.4) 1.69 1.02-2.81
Snacks             
Healthy Snacks             
Hardly eat (ref) 19(79.2)    0.04 5(20.8)    0.02 1(4.2)    0.11
1-2/wk. 87(63.0) 0.45 0.16-1.28 51(37.0) 2.38 0.78-7.21 24(17.4) 6.69 0.79-56.53
3-4/wk. 258(73.1) 0.72 0.26-1.97 95(26.9) 1.46 0.50-4.29 40(11.3) 4.35 0.53-36.04
≥5/wk. 1294(74.2) 0.76 0.28-2.03 451(25.8) 1.30 0.45-3.76 184(10.5) 3.95 0.49-32.21
Energy dense, nutrient poor             
Hardly eat (ref) 94(69.6)    0.38 41(30.4)    0.37 19(14.1)    0.47
1-2/wk. 691(73.7) 1.22 0.82-1.81 247(26.3) 0.80 0.54-1.19 103(11.0) 0.74 0.44-1.27
3-4/wk. 568(75.0) 1.31 0.88-1.96 189(25.0) 0.74 0.49-1.11 76(10.0) 0.67 0.39-1.16
≥5/wk. 310(71.3) 1.08 0.71-1.65 125(28.7) 0.88 0.58-1.36 52(12.0) 0.82 0.46-1.46
Others             
Hardly eat (ref) 27(73.0)    0.95 10(27.0)    0.63 6(16.2)    0.66
1-2/wk. 176(74.3) 1.07 0.49-2.34 61(25.7) 0.81 0.35-1.88 29(12.2) 0.55 0.20-1.51
3-4/wk. 378(74.0) 1.05 0.50-2.23 133(26.0) 0.96 0.43-2.16 53(10.4) 0.51 0.19-1.36
≥5/wk. 1073(72.9) 0.10 0.48-2.08 399(27.1) 1.02 0.46-2.26 162(11.0) 0.54 0.21-1.41
  1. *Unadjusted odds ratios were calculated on bivariate analyses with Spearman Correlations.
  2. Bold numbers refer to P<0.05.