Table 5.

Estimated coefficients with 95% confidence intervals of the new combined serum creatinine and cystatin C quadratic model

New Combined SCreat and CysC Quadratic ModelCoefficient Estimate (95% CI)
Intercept18.25 (−4.84 to 41.34)
Ht/SCreat0.42 (0.29 to 0.56)
(Ht/SCreat)2−0.04 (−0.07 to −0.02)
CysC−14.52 (−21.43 to −7.61)
Age0.69 (0.28 to 1.1)
Sex3.63 (0.55 to 6.72)
  • SCreat, serum creatinine expressed in mg/dl; CysC, cystatin C expressed in mg/L; Ht, height expressed in cm.