The Correlation between Dietary Selenium Intake and Type 2 Diabetes: A Cross-Sectional Population-Based Study on North Chinese Adults

Table 4

Odds ratios (95% CI) of incident type 2 diabetes by quintiles of dietary selenium intake in the total population, gender, and BMI subgroups.

Selected characteristics	Quintiles of dietary Se intake (μg/day)
	Q1	Q2	Q3	Q4	Q5
Range of Se intake	≤39.24	39.25–46.45	46.46–52.57	52.58–60.68	>60.69
No. of cases	285	369	338	378	434
Total population
Reduced model OR	1.00	1.48 (1.23–1.76)	1.35 (1.13–1.62)	1.51 (1.26–1.80)	1.74 (1.46–2.07)	<0.001
Multivariable adjusted OR	1.00	1.34 (1.11–1.63)	1.20 (0.99–1.47)	1.39 (1.14–1.69)	1.66 (1.38–1.99)	<0.001
Sex subgroup
Male	1.00	1.62 (1.23–2.14)	1.21 (0.91–1.62)	1.29 (0.98–1.71)	1.45 (1.12–1.89)	0.024
Female	1.00	1.33 (1.03–1.72)	1.39 (1.08–1.80)	1.73 (1.34–2.23)	2.14 (1.65–2.77)	<0.001
BMI subgroup
BMI < 25	1.00	1.57 (1.16–2.13)	1.42 (1.04–1.93)	1.75 (1.30–2.36)	2.12 (1.57–2.85)	<0.001
BMI ≥ 25	1.00	1.32 (1.06–1.62)	1.19 (0.94–1.55)	1.38 (1.10–1.71)	1.57 (1.24–1.98)	<0.001

Se: selenium; OR: odds ratio. Reduced model: age, sex, BMI, waist. Multivariable adjusted: age, sex, BMI, WC, education smoking (past, current, never), alcohol intake, energy intake (nonalcohol), body fat, education, family history of diabetes, exercise, hypertension, and coronary heart disease.