The Risk Factors of Nonalcoholic Fatty Liver Disease in Morbidly Obese Patients Undergoing Bariatric Surgery in Iran

Table 3

Analysis of the clinical and biochemical risk factors of NAFLD.

Risk factors	With NAFLD			Without NAFLD ()	value
	Grade I ()	Grade II ()	Grade III ()
Age, year					0.980
Sex
Female	39 (92.9)	31 (75.6)	19 (65.5)	98 (84.5)	0.018
Male	3 (7.1)	10 (24.4)	10 (34.5)	18 (15.5)
Weight (kg)					0.002
Body mass index (kg/m^2)					0.003
Waist circumference (cm)					0.392
Waist-to-hip ratio					0.271
Hypertension ()	4	10	5	16	0.065
Type 2 diabetes mellitus ()	1	3	3	10	0.541
Hypothyroidism ()	5	7	2	24	0.138
Dyslipidemia ()	14	13	15	36	0.306
Alanine aminotransferase (IU/L)	^a,b	^a,c	^b,d	^c,d	<0.001
Aspartate aminotransferase (IU/L)	^a	^b	^a,c	^a,b,c	<0.001
Alkaline phosphatase (IU/L)					0.233
Total cholesterol (mg/dl)	^a	^b	^a,b,c	^c	0.347
Triglyceride (mg/dl)					0.004
Low-density lipoprotein (mg/dl)					0.089
High-density lipoprotein (mg/dl)					0.044
Fasting blood sugar (mg/dl)	^a		^a		0.039

Waist circumference (), waist to hip (), age at the beginning of obesity (), alanine aminotransferase (), aspartate aminotransferase (), alkaline phosphatase (), total cholesterol (), triglycerides (), low-density lipoprotein (), high-density lipoprotein (), and fasting blood sugar (). The data have been presented as for quantitative variables and number (%) for qualitative ones. ^a,b,cSignificant differences between the groups by the Bonferroni test.