Table 5.

Poisson regression analysis with robust variance for anemia in subgroups according to DM.

Models	DM		Non-DM
	PR	95% CI	PR	95% CI
Blood Mn per 1 μg/L increase
Crude	0.975 *	0.957–0.994	0.927 *	0.897–0.958
Model 1	0.975 *	0.956–0.994	0.940 *	0.911–0.970
Model 2	0.975 *	0.956–0.995	0.941 *	0.912–0.971
Model 3	0.974 *	0.954–0.994	0.952 *	0.921–0.984
Model 4	0.982	0.964–1.001	0.949 *	0.918–0.981

Model 1: adjusting for age and sex; Model 2: adjusting for age, sex, smoking, and hypertension; Model 3: adjusting for age, sex, smoking, hypertension, ferritin 3 groups, and use of ESA; Model 4: adjusting for age, sex, smoking, hypertension, ferritin 3 groups, use of ESA, serum albumin, total cholesterol and transferrin. * p < 0.05.