Table 3.

Fall in GFR by decade

	Men n = 355	Women n = 589	All n = 944
Creatinine clearance ml/min/1.73 m2 per 10 years	−6.7 (−8.8 to −6.7)	−8.3 (−9.7 to −6.8)	−7.7 (−8.9 to −6.5)
Cockcroft-Gault ml/min/1.73 m2 per 10 years	−9.4 (−10.6 to −8.2)	−11.8 (−12.9 to −10.8)	−11.0 (−11.8 to −10.2)
MDRD-4 ml/min/1.73 m2 per 10 years	−3.8 (−6.0 to −1.6)	−6.4 (−7.9 to −4.9)	−5.5 (−6.8 to −4.3)
CKD-EPI ml/min/1.73 m2 per 10 years	−7.5 (−9.1 to −5.9)	−9.3 (−10.4 to −8.2)	−8.7 (−9.6 to −7.7)

95% confidence intervals given in brackets.