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Table 4 Regression coefficients and p-values for the 25th, 50th and 75th percentiles quantile regression models

From: Reference intervals for serum cystatin C and serum creatinine in an adult sub-Saharan African population

  Serum cystatin C Serum creatinine
25th 50th 75th 25th 50th 75th
Sex −0.1 (< 0.001)* − 0.1 (< 0.001)* −0.09 (< 0.001)* −0.24 (< 0.001)* −0.28 (< 0.001)* −0.27 (< 0.001)*
Age 7.67e−19 (1.000) − 3.36e− 18 (1.000) 0.003 (0.001)* 0.0007 (0.171) 0.001 (0.162) 0.002 (0.031)*
BSA 9.39e−17 (1.000) 7.35e−16 (1.000) 0.038 (0.475) 0.08 (0.072) 0.15 (0.001)* 0.127 (0.073)
  1. *p < 0.05