Subgroup analysis for different study categories.

Table 2: Subgroup analysis for different study categories.

Categorical variables	Included groups	Studies (n)	I²(%)	Pooled OR	Lower limit	Upper limit	p-value (within)	p-value (across)
Region	Asia	7	47.01	2.46	1.79	3.39	< 0.001	0.91
Region	Europe/ Americas	2	0	2.37	1.32	4.27	0.004	0.91
MASLD diagnosis	US or biopsy	6	53.33	2.53	1.78	3.59	< 0.001	0.76
MASLD diagnosis	Others	3	0	2.29	1.4	3.76	0.001	0.76
Population	General	6	43.62	2.35	1.7	3.23	< 0.001	0.644
Population	Special	3	36.42	2.73	1.56	4.78	< 0.001	0.644
Exclusion of previous OSA diagnosis	No	5	32.21	2.09	1.52	2.89	< 0.001	0.197
Exclusion of previous OSA diagnosis	Yes	4	21.07	2.93	1.97	4.35	< 0.001	0.197