Table 2.

Multiple logistic regression analyses of the association of ferritin levels and liver fibrosis.

Variable	Presence of fibrosis (stage 1–4)			Severe fibrosis (stage 2–4)			Advanced fibrosis (stage 3–4)
	Odds ratio	95% CI	P value	Odds ratio	95% CI	P value	Odds ratio	95% CI	P value
Model 1
Ferritin, normal (reference)	1			1			1
Ferritin > x ULN	1.84	1.36, 2.50	<0.001	1.64	1.22, 2.19	0.001	1.61	1.17, 2.18	0.004
Model 2
Ferritin ≤ x 1.5 ULN (reference)	1			1			1
Ferritin > x 1.5 ULN	2.14	1.45, 3.15	<0.001	1.95	1.38, 2.75	<0.001	1.95	1.34, 2.82	<0.001
Model 3
Ferritin ≤ x 2 ULN (reference)	1			1			1
Ferritin > x 2 ULN	2.52	1.45, 4.41	0.001	2.02	1.30, 3.14	0.002	2.11	1.33, 3.34	0.001

All multiple logistic regression models include age, gender, race, diabetes, BMI, ALT and site.