Table 3. Multivariate ORs of Liver Fibrosis in NHANES 2017–2020.3 Population after Deleting Outliers.

Variables	Total OR (95% CI)	P	Male OR (95% CI)	P	Female OR (95% CI)	P
Race
Other Hispanic	1.334 (0.742, 2.394)	0.336	1.194 (0.577, 2.469)	0.633	1.042 (0.486, 2.232)	0.917
Non-Hispanic White	1.218 (0.652, 2.273)	0.536	0.791 (0.377, 1.664)	0.538	1.300 (0.536, 3.152)	0.562
Non-Hispanic Black	1.763 (0.938, 3.317)	0.078	1.206 (0.508, 2.863)	0.671	1.855 (0.872, 3.951)	0.109
Non-Hispanic Asian	2.119 (0.902, 4.973)	0.085	1.861 (0.508, 6.828)	0.349	2.119 (0.766, 5.865)	0.148
Other Race	2.433 (0.665, 8.900)	0.179	3.193 (0.914, 11.145)	0.069	0.879 (0.110, 7.036)	0.903
Mexican American	ref	ref	ref	ref	ref	ref
BMI
Overweight	2.686 (1.387, 5.197)	0.003**	4.175 (1.921, 9.079)	<0.001**	2.201 (1.110, 4.362)	0.024*
Obesity	1.701 (1.067, 2.707)	0.026*	1.089 (0.621, 1.910)	0.766	2.208 (1.172, 4.158)	0.014*
Normal weight	ref	ref	ref	ref	ref	ref
Blood Pressure
Hypertension	0.979 (0.587, 1.636)	0.937	1.354 (0.675, 2.716)	0.393	0.736 (0.372, 1.458)	0.380
Standard blood pressure	ref	ref	ref	ref	ref	ref
Alcohol Use
Yes	0.904 (0.668, 1.224)	0.514	0.885 (0.507, 1.548)	0.669	1.005 (0.631, 1.602)	0.984
No	ref	ref	ref	ref	ref	ref
Smoking
Yes	0.972 (0.679, 1.392)	0.879	1.083 (0.675, 1.738)	0.741	0.778 (0.519, 1.165)	0.224
No	ref	ref	ref	ref	ref	ref
Blood MTBE concentration/0.01 ppb	1.457 (0.986, 2.154)	0.059	1.188 (0.735, 1.919)	0.481	1.730 (0.970, 3.087)	0.064
Education level
College graduate or above	0.845 (0.493, 1.449)	0.540	1.294 (0.512, 3.274)	0.586	0.652 (0.303, 1.404)	0.274
Some college or AA degree and below	ref	ref	ref	ref	ref	ref
Ratio of family income to poverty
1 ≤ PIR < 3	1.689 (0.907, 3.149)	0.099	1.259 (0.404, 3.927)	0.692	2.277 (1.241, 4.175)	0.008**
PIR ≥ 3	1.319 (0.732, 2.375)	0.357	1.010 (0.404, 2.524)	0.983	1.357 (0.657, 2.801)	0.409
<1	ref	ref	ref	ref	ref	ref

^*P < 0.05.

^**P < 0.01.