Table 3 Quality assessment of the included articles
Study ID | year | A | B | C | D | E | F | G | H | I | J | Sum |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Huang et al. [26] | 1999 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 8 |
Coakley et al. [25] | 1999 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 7 |
Lee et al. [28] | 2001 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 7 |
Lv et al. [32] | 2009 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 6 |
Zhu et al. [24] | 2011 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 7 |
Mohammadzadeh et al. [29] | 2011 | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 6 |
Kobak et al. [27] | 2012 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 7 |
Sun et al. [19] | 2013 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 9 |
Zhang et al. [23] | 2013 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 7 |
Sezgin et al. [22] | 2013 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 6 |
Seyfi et al. [30] | 2013 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 6 |
Zhu et al. [31] | 2016 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 8 |