Equation of Otani et al for Estimating Renal Function in an Elderly Japanese Adult (Revised Cockcroft-Gault Equation, Naruto Formula)

Patient selection: bedridden elderly Japanese adult, >= 65 years of age

Parameters:

(1) age in years

(2) weight in kilograms

(3) serum creatinine in mg/dL

(4) sex

(5) triceps skinfold (TSF) thickness in mm

estimated creatinine clearance in mL/min =

= (1.11 * (140 - (age)) * (weight) / (72 * ((creatinine) + 0.2)) * (points for sex)) - (0.93 *(TSF)) + 5.75