Table 3.

Assessment of quality.

Study ID	1	2	3	4	5	6	7	Total score (7)
[27]	✓	✓	✓	✓	✓	✓	✓	7
[10]	✓	✓	✗	✓	✗	✓	✓	5
[2]	✓	✓	✓	✓	✓	✗	✓	6
[28]	✓	✓	✓	✗	✓	✗	✓	5
[29]	✓	✓	✓	✓	✓	✓	✓	7
[16]	✓	✓	✓	✓	✓	✗	✓	6
[31]	✓	✓	✗	✓	✓	✓	✓	6
[32]	✓	✓	✓	✓	✓	✓	✓	7
[33]	✓	✓	✗	✗	✓	✗	✓	4
[34]	✓	✓	✗	✓	✓	✗	✓	5
[35]	✓	✓	✓	✓	✓	✓	✓	7
[36]	✓	✓	✓	✓	✓	✓	✓	7
[37]	✓	✓	✗	✓	✓	✓	✓	6
[8]	✓	✓	✓	✓	✓	✓	✓	7
[38]	✓	✓	✓	✓	✓	✓	✓	7
[39]	✓	✓	✓	✓	✓	✓	✓	7
[40]	✓	✗	✓	✓	✓	✓	✗	5
[41]	✓	✓	✓	✓	✓	✓	✓	7
[42]	✓	✓	✗	✓	✓	✗	✓	5
[43]	✓	✓	✗	✓	✓	✓	✓	6
[16]	✓	✓	✓	✓	✓	✓	✓	7
[44]	✓	✓	✗	✓	✓	✓	✓	6
[45]	✓	✓	✓	✓	✓	✓	✓	7
[46]	✓	✓	✓	✓	✓	✓	✓	7
[47]	✓	✓	✓	✓	✓	✓	✓	7
[14]	✓	✓	✗	✓	✓	✗	✓	5
[48]	✓	✓	✓	✓	✓	✓	✓	7
[49]	✓	✓	✓	✓	✓	✓	✓	7
[50]	✓	✓	✓	✓	✓	✓	✓	7
[35]	✓	✓	✗	✓	✓	✗	✓	5
[52]	✓	✓	✓	✓	✓	✓	✓	7
[53]	✓	✓	✗	✓	✓	✓	✓	6
[54]	✓	✓	✓	✓	✓	✓	✓	7
[55]	✓	✓	✓	✓	✓	✓	✓	7
[19]	✓	✓	✗	✓	✓	✗	✓	5
[56]	✓	✗	✓	✓	✓	✓	✓	6
[53]	✓	✓	✗	✓	✓	✗	✓	5
[57]	✓	✓	✓	✓	✓	✓	✗	6
[11]	✓	✓	✗	✓	✓	✓	✓	6
[58]	✓	✓	✗	✓	✓	✗	✓	5