Table 3. Adjusted odds ratios and 95% confidence intervals for increased prevalence of anemia based on G category strata.

		Anemia (JSDT1 Criteria) *	Anemia (KDOQI Criteria)*	Anemia (EBPG Criteria)*	Anemia (JSDT2 Criteria)†
G3a	Reference	1	1	1	1
G3b	AOR [95% CI]	2.32 [2.09–2.58]	2.02 [1.86–2.20]	2.03 [1.87–2.21]	2.26 [2.03–2.52]
G4	AOR [95% CI]	5.50 [4.80–6.31]	4.89 [4.31–5.55]	4.88 [4.31–5.54]	5.09 [4.45–5.82]
G5	AOR [95% CI]	9.75 [8.13–11.7]	9.30 [7.67–11.3]	11.2 [9.15–13.8]	10.6 [8.85–12.7]

Model 1*: age, CKD A category, Alb, and CRP as covariates.

Model 2^†: age, sex, CKD A category, Alb, and CRP as covariates.

AOR and 95% CI were analyzed by logistic regression analysis using each of the above factors as covariates.

Abbreviations: Alb, albumin; AOR, adjusted odds ratio; CI, confidence interval, CKD, chronic kidney disease; CRP, C-reactive protein; JSDT, Japanese Society for Dialysis Therapy; KDOQI, Kidney Disease Outcomes Quality Initiative; EBPG, European Best Practice Guidelines.