Table 2. Odds ratios for anemia associated with ACR.

	Prevalence rates	OR (95% CI)
ACR (mg/g)	N (%)	Model 1	Model 2	Model 3
<30	44 (19.4%)	1 (reference)	1 (reference)	1 (reference)
30–299	181 (39.8%)	2.69 (1.83–3.96)	1.48 (0.96–2.28)	1.43 (0.88–2.33)
≥300	419 (54.1%)	5.00 (3.47–7.21)	2.11 (1.40–3.17)	1.86 (1.12–3.10)

Anemia (hemoglobin <13 g/dL for men, <12 g/dL for women).

Model 1: adjusted for age and sex (adjusted R² = 0.106, P = 0.028)

Model 2: adjusted for age, sex, and the eGFR (adjusted R² = 0.296, P = 0.123)

Model 3: adjusted for age, sex, the eGFR, serum calcium level, BMI, pulse pressure, use of ESA, smoking, the cause of CKD, and ferritin level (adjusted R² = 0.387, P = 0.005)

Abbreviations: ACR, albumin creatinine ratio; eGFR, estimated GFR; CI, confidence interval; BMI, body mass index; ESA, erythropoiesis stimulating agent; CKD, chronic kidney disease.