Predicted probability of mGFR <80 when eGFR was <80 ml/min per 1.73 m2 by Bayes theorem. Percentages represent probabilities calculated by Bayes theorem, for MDRD (M), CKD-EPI (C-E), and CG/BSA (CG) equations in 295 subsequent individuals who were referred for donor screening without previous selection. Break-ups are made for gender, age, and BMI. The number of individual in each subgroup is as follows: an = 20, bn = 41, cn = 25, dn = 45, en = 39, fn = 43, gn = 34, and hn = 48.