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

Table 2 Association between iron intake and high cardiovascular disease risk in men

	Model 1			Model 2			Model 3
Quintiles of total iron intake	OR	95%CI	P	OR	95%CI	P	OR	95%CI	P
Q1	Ref			Ref			Ref
Q2	0.541	0.426–0.688	< 0.001	0.564	0.438–0.728	< 0.001	0.569	0.441–0.736	< 0.001
Q3	0.347	0.367–0.451	< 0.001	0.381	0.289–0.503	< 0.001	0.382	0.288–0.505	< 0.001
Q4	0.250	0.188–0.332	< 0.001	0.251	0.185–0.340	< 0.001	0.259	0.190–0.352	< 0.001
Q5	0.284	0.215–0.374	< 0.001	0.324	0.241–0.436	< 0.001	0.335	0.248–0.453	< 0.001
Quintiles of heme iron intake
Q1	Ref			Ref			Ref
Q2	1.139	0.880–1.474	0.324	1.057	0.800-1.395	0.698	1.001	0.756–1.327	0.993
Q3	0.955	0.733–1.245	0.735	0.918	0.690–1.221	0.558	0.854	0.640–1.141	0.286
Q4	0.877	0.670–1.147	0.337	0.921	0.687–1.234	0.580	0.846	0.628–1.139	0.270
Q5	0.645	0.485–0.859	0.003	0.732	0.534–1.004	0.053	0.679	0.492–0.937	0.018
Quintiles of non-heme iron intake
Q1	Ref			Ref			Ref
Q2	0.541	0.425–0.688	< 0.001	0.549	0.460–0.768	< 0.001	0.612	0.472–0.793	< 0.001
Q3	0.393	0.304–0.508	< 0.001	0.420	0.319–0.552	< 0.001	0.445	0.337–0.588	< 0.001
Q4	0.260	0.195–0.346	< 0.001	0.275	0.203–0.374	< 0.001	0.297	0.218–0.404	< 0.001
Q5	0.279	0.211–0.369	< 0.001	0.334	0.246–0.453	< 0.001	0.362	0.266–0.492	< 0.001

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