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Table 2 Odds ratios (OR) and 95% confidence intervals (CI) for anemia in relation to glomerular filtration rate (GFR) levels

From: Associations between renal impairment and anemia in older, rural Japanese men: the Nagasaki Island study

 

Non-chronic kidney diseased

Chronic kidney diseasec

P

Normal renal functiona

 

Mild renal impairmentb

Number at risk

109

 

645

351

 

Number of cases (percentage)

26 (23.9)

 

63 (9.8)

73 (20.8)

 

Age-adjusted OR

 

1.00

 

1.54 (1.08 to 2.20)

0.016

 

1.00

 

0.26 (0.16 to 0.45)

052 (0.30 to 0.89)

0.967

Multivariable OR

 

1.00

 

1.81 (1.23 to 2.68)

0.003

 

1.00

 

0.26 (0.15 to 0.47)

0.60 (0.33 to 1.09)

0.644

  1. aNormal renal function, bmild renal impairment, and cchronic kidney disease (CKD) were defined as respectively, GFR ≥90 mL/min/1.73 m2, 90 mL/min/1.73 m2 > GFR ≥60 mL/min/1.73 m2, and GFR <60 mL/min/1.73 m2. dNon-chronic kidney disease includes normal renal function and mild renal impairment. Anemia: hemoglobin in level <13.0 g/dL. Multivariable OR: adjusted further for age, systolic blood pressure, antihypertensive medication use, body mass index, smoking, alcohol intake, diabetes, history of cardiovascular disease, serum HDL cholesterol, serum triglycerides (TG), serum aspartate aminotransferase (AST), and serum γ-glutamyltranspeptidase (γGTP).