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Table 2 Yearly coefficients (standard error) in quantile regressions using WC, WHtR or WHpR as outcomes

From: Changes in distributions of waist circumference, waist-to-hip ratio and waist-to-height ratio over an 18-year period among Chinese adults: a longitudinal study using quantile regression

 

10th

25th

50th

75th

90th

Male

 WC

  Model 1

1.400a (0.057)

1.279a (0.070)

1.337a (0.035)

1.440a (0.041)

1.507a (0.089)

  Model 2

1.107a (0.032)

1.110a (0.034)

1.133a (0.032)

1.184a (0.033)

1.176a (0.032)

  Model 3

1.102a (0.042)

1.114a (0.038)

1.152a (0.039)

1.160a (0.045)

1.204a (0.039)

 WHtR

  Model 1

0.798a (0.021)

0.750a (0.024)

0.795a (0.023)

0.800a (0.024)

0.750a (0.034)

  Model 2

0.535a (0.023)

0.543a (0.023)

0.552a (0.022)

0.558a (0.022)

0.572a (0.023)

  Model 3

0.546a (0.022)

0.551a (0.021)

0.560a (0.020)

0.567a (0.020)

0.579a (0.021)

 WHpR

  Model 1

0.714a (0.037)

0.671a (0.022)

0.650a (0.028)

0.664a (0.022)

0.632a (0.041)

  Model 2

0.461a (0.027)

0.476a (0.029)

0.487a (0.028)

0.495a (0.029)

0.512a (0.028)

  Model 3

0.471a (0.026)

0.475a (0.023)

0.491a (0.023)

0.511a (0.022)

0.531a (0.024)

Female

 WC

  Model 1

1.227a (0.068)

1.001a (0.029)

1.272a (0.029)

1.332a (0.058)

1.337a (0.063)

  Model 2

0.751a (0.044)

0.763a (0.042)

0.782a (0.043)

0.791a (0.046)

0.808a (0.047)

  Model 3

0.753a (0.032)

0.786a (0.032)

0.788a (0.032)

0.801a (0.031)

0.818a (0.035)

 WHtR

  Model 1

0.749a (0.029)

0.747a (0.026)

0.752a (0.026)

0.769a (0.029)

0.802a (0.030)

  Model 2

0.361a (0.025)

0.368 (0.024)

0.374a (0.024)

0.379a (0.024)

0.390a (0.024)

  Model 3

0.356a (0.025)

0.365a (0.025)

0.362a (0.026)

0.377a (0.026)

0.390a (0.026)

 WHpR

  Model 1

0.750a (0.032)

0.701a (0.022)

0.700a (0.027)

0.707a (0.034)

0.696a (0.048)

  Model 2

0.437a (0.026)

0.442a (0.026)

0.456a (0.026)

0.463a (0.025)

0.477a (0.026)

  Model 3

0.407a (0.023)

0.421a (0.025)

0.434a (0.023)

0.444a (0.022)

0.450a (0.025)

  1. Model 1 includes year only; Model 2 includes year, age, education, energy intake, physical activity, income, smoking and drinking history; Model 3 includes all the components of Model 2 and the urbanicity index
  2. aP < 0.001
  3. Abbreviation: WC, waist circumference; WHtR, waist-to-height ratio; WHpR, waist-to-hip ratio