Associations of dietary iron intake with cardiovascular disease risk and dyslipidemia among Chinese adults

Table 3 Association between iron intake and high CVD risk in women

	Model 1			Model 2			Model 3
Quintiles of total iron intake
Q1	Ref			Ref			Ref
Q2	0.574	0.344–0.959	0.034	0.514	0.294–0.899	0.020	0.541	0.308–0.950	0.032
Q3	0.235	0.117–0.473	< 0.001	0.244	0.115–0.518	< 0.001	0.244	0.115–0.520	< 0.001
Q4	0.283	0.148–0.543	< 0.001	0.329	0.164–0.663	0.002	0.355	0.176–0.715	0.004
Q5	0.211	0.102–0.438	< 0.001	0.274	0.124–0.609	0.001	0.282	0.126–0.629	0.002
Quintiles of heme iron intake
Q1	Ref			Ref			Ref
Q2	0.912	0.501-1,660	0.763	0.787	0.410–1.513	0.473	0.777	0.403–1.499	0.452
Q3	1.090	0.614–1.935	0.770	1.213	0.652–2.257	0.542	1.117	0.596–2.092	0.730
Q4	0.778	0.417–1.454	0.433	0.870	0.439–1.726	0.690	0.823	0.413–1.642	0.581
Q5	0.385	0.177–0.837	0.016	0.537	0.232–1.244	0.147	0.498	0.214–1.159	0.106
Quintiles of non-heme iron intake
Q1	Ref			Ref			Ref
Q2	0.702	0.425–1.161	0.168	0.687	0.396–1.191	0.181	0.716	0.411–1.247	0.237
Q3	0.127	0.050–0.323	< 0.001	0.130	0.045–0.374	< 0.001	0.134	0.047–0.388	< 0.001
Q4	0.410	0.227–0.742	0.003	0.578	0.305–1.093	0.092	0.641	0.337–1.219	0.175
Q5	0.255	0.126–0.514	< 0.001	0.333	0.149–0.746	0.008	0.347	0.154–0.781	0.011

Model 1: Unadjusted. Model 2: Adjusted for BMI, alcohol status, energy intake, urban residence, and education level. Model 3: Adjusted for Model 2 + serum ferritin, transferrin, and transferrin receptor levels. Heme and non-heme iron intakes were adjusted mutually

ISSN: 1476-511X