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Table 2 Coefficients of the regression model used for the centiles computation

From: New anthropometry-based age- and sex-specific reference values for urinary 24-hour creatinine excretion based on the adult Swiss population

Variable Parameter Coefficient P -value
Intercept β0 266.16 <0.001
Sex (if women) β1 −47.71 <0.001
BMI (kg/m2) β2 −2.33 <0.001
Age (years) β3 0.66 0.05
Age2 (years2) β4 −0.017 <0.001
  1. A linear regression model was used to predict the 24-hour urinary creatinine excretion per body weight (expressed in μmol/kg/24 hours).