Table 3.

Prevalence of anemia using cross-tabulation of estimated glomerular filtration rate and albuminuria categories

Categories for estimated glomerular filtration rate (mL/min/1.73 m2)	Albuminuria category	Prevalence of anemia
		Mean	95% confidence interval	P for trend
<15	Normoalbuminuria	0.84	0.78–0.90	<.001
	Microalbuminuria	0.92	0.89–0.94
	Macroalbuminuria	0.95	0.94–0.96
15–<30	Normoalbuminuria	0.66	0.64–0.68	<.001
	Microalbuminuria	0.70	0.69–0.72
	Macroalbuminuria	0.74	0.73–0.75
30–<45	Normoalbuminuria	0.41	0.40–0.42	<.001
	Microalbuminuria	0.45	0.45–0.46
	Macroalbuminuria	0.48	0.47–0.49
45–<60	Normoalbuminuria	0.24	0.23–0.24	<.001
	Microalbuminuria	0.28	0.28–0.29
	Macroalbuminuria	0.33	0.32–0.34
60–<90	Normoalbuminuria	0.15	0.15–0.15	<.001
	Microalbuminuria	0.18	0.18–0.18
	Macroalbuminuria	0.23	0.22–0.23