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Table 4 Mixed-effects linear regression estimates for mean differences in HRQoL utility scores by gender, school type and residence in this study

From: Lifestyle-related behaviors and health-related quality of life among children and adolescents in China

  Gender School type Residence
Boys (N = 2204) Girls (N = 2184) Primary (N = 1602) Junior high (N = 1455) Senior high (N = 1331) Rural (N = 2030) Sub-urban (N = 997) Urban (N = 1361)
Mean 95% CI P Mean 95% CI P Mean 95% CI P Mean 95% CI P Mean 95% CI P Mean 95% CI P Mean 95% CI P Mean 95% CI P
Physical activitya                         
 Insufficient − 0.02 − 0.04, − 0.01 0.008 − 0.03 − 0.05, − 0.01 0.005 − 0.027 − 0.03, 0.00 0.046 − 0.02 − 0.04, − 0.001 0.043 − 0.04 − 0.07, − 0.01 0.010 − 0.02 − 0.04, − 0.01 0.007 − 0.04 − 0.07, − 0.02 0.001 − 0.01 − 0.05, 0.02 0.406
Screen time                         
 ≥ 2 h/day − 0.05 − 0.09, − 0.01 0.009 − 0.04 − 0.09, − 0.001 0.047 − 0.08 − 0.13, − 0.03 0.006 − 0.06 − 0.09, − 0.02 0.005 − 0.003 − 0.06, 0.05 0.903 − 0.06 − 0.10, − 0.01 0.009 − 0.01 − 0.07, 0.05 0.765 − 0.04 − 0.11, 0.02 0.163
Sleeping timeb                         
 Insufficient − 0.06 − 0.08, − 0.04 0.000 − 0.05 − 0.07, − 0.03 0.000 − 0.03 − 0.05, − 0.01 0.025 − 0.08 − 0.11, − 0.05 0.000 − 0.06 − 0.10, − 0.02 0.005 − 0.04 − 0.06, − 0.01 0.004 − 0.08 − 0.12, − 0.04 0.000 − 0.08 − 0.11, − 0.05 0.000
Sugar-sweetened beverage consumptionc                         
 Yes − 0.01 − 0.03, 0.002 0.085 − 0.04 − 0.06, − 0.02 0.000 − 0.04 − 0.06, − 0.02 0.000 − 0.03 − 0.05, − 0.01 0.001 0.002(0.011) − 0.02, 0.02 0.883 − 0.02(0.01) − 0.04, − 0.01 0.003 − 0.03 − 0.06, − 0.01 0.004 − 0.02 − 0.04, 0.001 0.067
Fast food consumption c                         
 Yes − 0.02 − 0.04, − 0.01 0.008 − 0.04 − 0.05, − 0.02 0.000 − 0.03 − 0.05, − 0.01 0.011 − 0.03 − 0.06, − 0.00 0.009 − 0.03 − 0.05, − 0.01 0.020 − 0.04(0.01) − 0.05, − 0.02 0.000 − 0.03 − 0.05, 0.003 0.073 − 0.03 − 0.06, 0.002 0.061
  1. Mixed-effects linear regression analysis with adjustment for age, gender, school type, residence, parental educational attainment, body weight status and class-level clustering effects
  2. aSufficient physical activity refers to at least 60 min/day moderate-vigorous intensity physical activity plus ≥ 3 days muscle/bone-strengthening; while insufficient physical activity means less than 60 min/day moderate-vigorous intensity physical activity or having no ≥ 3 days muscle/bone-strengthening
  3. bSleeping time: sufficient sleeping time was defined as 10 h/day for children aged 7–13, 9 h/day for children aged 13–16, and 8 h/day for those aged 16–19, based on guidelines for promotion of children and adolescents’ physical activity and fitness by The State Council of China
  4. cSugar-sweetened beverage and fast food consumption was separately categorized into: “no” or “yes” based on the weekly consumption frequency, separately