Table 3.

Multivariate logistic regression analysis for fatty liver stratified by body mass index

	BMI <24 (n=584)			24≤ BMI <27 (n=334)			BMI ≥27 (n=219)
	OR	95% CI	p Value	OR	95% CI	p Value	OR	95% CI	p Value
Age
<50	1.000	–	–	1.000	–	–	1.000	–	–
50–65	1.908	0.915 to 3.979	0.085	0.956	0.532 to 1.719	0.881	0.578	0.279 to 1.198	0.141
65+	0.969	0.293 to 3.203	0.959	1.357	0.638 to 2.885	0.428	0.904	0.291 to 2.808	0.862
Gender, male	2.232	1.055 to 4.723	0.036	1.074	0.596 to 1.935	0.812	2.234	1.027 to 4.862	0.043
Met-S	2.375	0.933 to 6.047	0.070	2.912	1.692 to 5.011	<0.001	3.425	1.667 to 7.04	<0.001
Smoking	0.913	0.326 to 2.561	0.863	0.995	0.466 to 2.122	0.989	0.565	0.242 to 1.322	0.188
Alcohol consumption	1.152	0.452 to 2.938	0.767	1.242	0.633 to 2.437	0.529	0.975	0.427 to 2.229	0.953
Deprivation	1.324	1.004 to 1.747	0.047	1.121	0.907 to 1.385	0.291	1.028	0.793 to 1.331	0.836
Heavy metal exposure	2.432	1.088 to 5.435	0.030	1.124	0.623 to 2.029	0.699	1.404	0.656 to 3.007	0.382

Heavy metal exposure: used the dichotomous variable by combining levels 1–3 as non-polluted and levels 4–5 as polluted, based on data from the Environmental Protection Administration, Taiwan.

BMI, body mass index; Met-S, metabolic syndrome, according to the definition of ATPIII 2004.