Table 3.

Relationship Between Hb/RDW-SD and HF 3-Month Readmission in Different Models

Variable	Crude Model (OR, 95% CI, P)	Model I (OR, 95% CI, P)	Model II (OR, 95% CI, P)
Hb/RDW-SD	0.73 (0.61, 0.87) 0.0006	0.74 (0.62, 0.89) 0.0017	0.70 (0.55, 0.89) 0.0031
Hb/RDW-SD (quartile)
Q1	Ref	Ref	Ref
Q2	0.95 (0.71, 1.28) 0.7403	0.96 (0.72, 1.29) 0.8070	1.02 (0.73, 1.43) 0.9088
Q3	0.90 (0.67, 1.21) 0.5000	0.92 (0.69, 1.24) 0.5932	0.88 (0.62, 1.26) 0.4939
Q4	0.62 (0.45, 0.84) 0.0024	0.64 (0.47, 0.88) 0.0065	0.65 (0.44, 0.96) 0.0309
P for trend	0.0033	0.0097	0.0226

Notes: Crude model: we did not adjust other covariates. Model I: we adjusted age, gender. Model II: we adjusted age, gender, occupation, MSCKD, SBP, DBP, type of HF, diabetes, creatinine, urea, GFR, albumin, potassium, sodium, BNP, total bilirubin, NYHA class, presence of LVEF.