Table 1.

Meta-regression according to the Country Income Level and the Study Quality Score

Co-morbidity	Covariate	Number of studies	Coefficient	Z	p	T 2	R 2
1	Income Level	29	- 0,6286	- 0,89	0,3757	0,3653	0,00
	Quality Score	29	18,492	3,00	0,0027	0,3653	0,10
2	Income Level	8	17,542	3,09	0,0020	0,4177	0,23
	Quality Score	8	1100	0,89	0,3740	0,4177	0,00

1: Comorbidities of mental disorders and chronic physical diseases of prevalence studies

2: Comorbidity of mental disorders and chronic physical diseases of analytical studies