Table 2.

Annual eGFR Decrements by Age

Diabetes/Hypertension Status	eGFR	Age 30-49 y	Age ≥ 50 y
Neither
No proteinuria	≥60	0.85	1.0
	<60	0.85	1.0
Proteinuria	≥60	0.935	1.1
	<60	4.2	4.2
Hypertension
No proteinuria	≥60	0.935	1.1
	<60	1.4	1.4
Proteinuria	≥60	1.02	1.2
	<60	3.9	3.9
Diabetes
No proteinuria	≥60	0.935	1.1
	<60	2.8	2.8
Proteinuria	≥60	4.1	4.1
	<60	5.2	5.2

Abbreviation and definition: eGFR, estimated glomerular filtration rate expressed as mL/min/1.73 m². Rates for African Americans are multiplied by 1.25 and 1.5 for eGFRs of 30 to 59 and 15 to 29 mL/min/1.73 m², respectively; corresponding rates for non–African Americans are multiplied by 0.875 and 0.8 (Hoerger et al⁸).

Source: Boulware et al¹⁰ and authors’ analysis of 1999 to 2010 National Health and Nutrition Examination Survey data.