Serum Zinc Ion Concentration Associated with Coronary Heart Disease: A Systematic Review and Meta-Analysis

Table 2

Quality assessment form.

	No. 1	No. 2	No. 3	No. 4	No. 5	No. 6	No. 7	No. 8	No. 9	No. 10	No. 11	No. 12	Total score
Li et al. [26]	1	1	2	2	0	0	0	1	2	2	2	2	15
Rana-2020	2	1	2	1	0	0	0	2	1	2	2	2	15
Islamoglu et al. [25]	2	2	2	2	0	0	0	2	2	2	2	2	18
Soinio et al. [21]	2	2	2	2	0	1	0	2	2	2	2	2	19
Meng et al. [16]	2	2	2	2	0	0	0	2	2	2	2	2	18
Cebi et al. [23]	2	1	2	2	0	0	0	2	2	2	2	2	17
Basnet et al. [22]	2	2	2	2	1	1	1	2	2	2	2	2	21