Table 4.

Subgroup analysis assessing different variables for the risk of nonalcoholic fatty liver disease after cholecystectomy in included cross-sectional studies.

						Heterogeneity
Variables			Number	OR [95% Conf. Interval]		I-squared (%)	P
BMI
<25			2	1.82 (0.80-2.85)		83.5%	0.014
>25			2	2.51 (1.95-3.06)		0.00%	<0.05
P <0.05
ethnicity
Asian			1	1.35 (0.98-1.72)		NA	NA
Hispanics			4	2.47 (2.02-2.92)		0.00%	0.929
P <0.05
Sample size
<10000			1	2.40 (1.65-3.15)		NA	NA
>10000			3	2.07 (1.18-2.96)		82.7%	<0.05
P <0.05
Adjusted-alcohol intake
No			1	1.35 (0.98-1.72)		NA	NA
Yes			3	2.47 (2.02-2.92)		0.00%	0.929
P <0.05
Adjusted-Physical activity
No			2	2.49 (1.93-3.06)		0.00%	0.718
Yes			2	1.84 (0.79-2.90)		84.9%	<0.05
P <0.05
Excluded 1 diabetes
No			2	2.49 (1.93-3.06)		0.00%	0.718
Yes			2	1.84 (0.79-2.90)		84.9%	<0.05
P <0.05

NA, Not applicable.