Model 1 | Model 2 | ||
---|---|---|---|
Rate ratio | Rate ratio | ||
Age (reference: 12 years) | Age 14 years | 1.11 (0.98, 1.27) | 1.09 (0.96, 1.24) |
Age 17 years | 1.28*** (1.12, 1.45) | 1.27*** (1.12, 1.45) | |
Sex (female) | 1.40*** (1.26, 1.56) | 1.42*** (1.28, 1.57) | |
City (rural) | 1.49*** (1.33, 1.66) | 1.47*** (1.31, 1.65) | |
Ethnicity: (reference: Han) | Ethnicity Zhuang | 1.61*** (1.44, 1.80) | 1.60*** (1.43, 1.78) |
Ethnicity Yao | 0.32*** (0.27, 0.39) | 0.31*** (0.26, 0.38) | |
TV (reference: <30 minutes/day) | 30-60 minutes | 1.04 (0.90, 1.19) | 1.04 (0.91, 1.20) |
60-120 minutes | 1.24** (1.07, 1.43) | 1.24** (1.07, 1.43) | |
120-180 minutes | 1.26* (1.04, 1.52) | 1.26* (1.04, 1.52) | |
>180 minutes | 1.26* (1.04, 1.54) | 1.26* (1.04, 1.54) | |
Drink milk (reference: never) | Sometimes | 0.91 (0.77, 1.07) | |
Every day | 0.94 (0.77, 1.17) | ||
Twice a day | 0.84 (0.64, 1.12) | ||
Breakfast (Have breakfast most days) | 0.87 (0.75, 1.03) |