Table 3.

Multiple regression results for severity of hepatic fat (grades 2 and 3 versus grade 1).

	Odds ratio	95% confidence interval	P value
Glucose level
<100 mg/dL	Reference
100–124 mg/dL	1.475	[1.161, 1.876]	0.0015
125–199 mg/dL	1.655	[1.231, 2.225]	0.0009
200+ mg/dL	2.530	[1.632, 3.922]	<0.0001
Serum insulin > 17 µU/mL	1.900	[1.532, 2.357]	<0.0001
Triglyceride level
<125 mg/dL	Reference
125–199 mg/dL	1.415	[1.126, 1.778]	0.0029
200+ mg/dL	1.448	[1.117, 1.877]	0.0052
ALT level
Quartile 1 (<20 U/L)	Reference
Quartile 2: (20–25 U/L)	1.690	[1.247, 2.290]	0.0007
Quartile 3: (26–36 U/L)	2.765	[2.065, 3.703]	<0.0001
Quartile 4: (37+ U/L)	5.144	[3.616, 7.319]	<0.0001
AST level
Quartile 1, 2, or 3 (<31 U/L)	Reference
Quartile 4 (31+ U/L)	1.696	[1.288, 2.235]	0.0002
BUN level
Quartile 1 (<13 mg/dL)	1.556	[1.264, 1.917]	<0.0001
Quartile 2, 3, or 4 (13+ mg/dL)	Reference
Use of metformin	1.432	[1.175, 1.745]	0.0004
Use of fibric acid derivative	1.766	[1.188, 2.626]	0.0050
Use of tricyclics or modified cyclics	1.488	[1.099, 2.013]	0.0101
Female gender	1.295	[1.017, 1.649]	0.0359
Pre-op weight change
Weight gain	3.325	[2.288, 4.834]	<0.0001
0–4 %EWL	2.636	[1.793, 3.876]	<0.0001
5–9 %EWL	2.436	[1.703, 3.484]	<0.0001
10–19 %EWL	1.561	[1.115, 2.185]	0.0094
20+ %EWL	Reference

c-statistic = 0.772.