| Authors |
A clearly stated aim |
Inclusion of consecutive patients |
Prospective collection of data |
Endpoints appropriate to the aim of the study |
Unbiased assessment of the study endpoint |
Follow-up period appropriate to the aim of the study |
Loss to follow up less than 5% |
Prospective calculation of the study size |
Score out of 16 |
| Jeremy M. Rawlins et al., 2007 [6] |
2 |
2 |
1 |
0 |
0 |
2 |
0 |
0 |
7 |
| Lucy Ann Wibbenmeyer et al., 2003 [7] |
2 |
1 |
1 |
0 |
0 |
0 |
0 |
2 |
6 |
| Shelly Abramowicz et al., 2019 [8] |
2 |
2 |
2 |
0 |
0 |
1 |
2 |
2 |
11 |
| Ember Lee Ewings et al., 2008 [9] |
2 |
2 |
0 |
0 |
0 |
2 |
0 |
0 |
6 |
| J. P. Tourtier et al., 2010 [10] |
2 |
2 |
2 |
0 |
0 |
0 |
0 |
1 |
7 |
| Douglas Cowan et al., 2013 [11] |
2 |
2 |
2 |
0 |
0 |
1 |
N/A |
0 |
9 |
| Jason Wasiak et al., 2009 [12] |
2 |
N/A |
0 |
0 |
0 |
N/A |
N/A |
0 |
2 |
| Ayhan Saritas et al., 2013 [13] |
2 |
1 |
2 |
0 |
0 |
N/A |
N/A |
0 |
5 |
| Miguel M. Glatstein et al., 2013 [14] |
2 |
2 |
2 |
0 |
0 |
N/A |
N/A |
2 |
8 |
| Kevin M. Creamer et al., 2008 [26] |
2 |
1 |
0 |
2 |
2 |
0 |
N/A |
0 |
7 |
| Ahmet Guzel et al., 2009 [25] |
2 |
0 |
0 |
2 |
2 |
0 |
N/A |
0 |
6 |
| Ceri Elisabeth Battle et al., 2016 [22] |
2 |
1 |
0 |
2 |
0 |
N/A |
N/A |
0 |
5 |
| Thomas D. Kirsch et al., 1996 [15] |
2 |
2 |
0 |
1 |
0 |
0 |
N/A |
N/A |
5 |
| Sammy Othman et al., 2020 [16] |
2 |
2 |
0 |
2 |
2 |
N/A |
N/A |
2 |
10 |
| L. G. Yamamoto et al., 1992 [19] |
2 |
1 |
2 |
0 |
0 |
2 |
N/A |
1 |
8 |
| Rebecca A. McCormack et al., 2003 [21] |
2 |
2 |
2 |
1 |
0 |
N/A |
N/A |
N/A |
7 |
