Table 3.
Comparison between the methodologies of similar studies
| Author | Year | Location | Number of cases | Gender (M/F) | Age | Stone size | Study type | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| OSD | Serial | OSD M/F | Serial M/F | OSD | Serial | OSD | Serial | ||||
| Sahin et al. [6] | 2019 | Turkey | 61 | 66 | 40/21 | 48/18 | 46.5 | 48.9 | 2.07 | 2.32 | Retrospective |
| Moufid et al. [5] | 2012 | Morocco | 50 | 50 | NR | NR | NR | NR | NR | NR | Prospective |
| Frattini et al. [15] | 2001 | Italy | 26 | 27 | 15/12 | 17/9 | 59 | 54 | 2.3 ± 0.7 | 2.9 ± 0.9 | Prospective |
| Amjad et al. [14] | 2008 | Iran | 17 | 14 | 10/7 | 12/2 | 42 | 44 | 3.7 ± 1.0 | 3.2 ± 1.1 | Prospective |
| Falahatkar et al. [16] | 2009 | Iran | 102 | 112 | 56/46 | 62/50 | 57 | 51 | 3.9 ± 1.6 | 3.4 ± 1.2 | Prospective |
| Aminsharifi et al. [17] | 2011 | Iran | 29 | 19 | 19/10 | 9/10 | 44.1 | 42.5 | 2.7 ± 1.0 | 3.7 ± 1.3 | Prospective |
| Nour et al. [11] | 2014 | Egypt | 24 | 25 | 17/7 | 16/9 | 43.8 | 38.2 | 3.0 ± 0.7 | 3.0 ± 0.7 | Prospective |
| Hosseini et al. [12] | 2014 | Iran | 31 | 31 | 22/9 | 18/13 | 3.7 | 3.7 | 2.0 ± 0.4 | 1.7 ± 0.4 | Prospective |
| Srivastava et al. [13] | 2017 | India | 120 | 120 | 59/61 | 62/58 | 38.9 | 40.1 | NR | NR | Prospective |
| Suelozgen et al. [7] | 2017 | Turkey | 932 | 0 | 558/374 | 0 | 48.9 | N/A | NR | N/A | Retrospective |
| This study | 2020 | Egypt | 71 | 58 | 49/22 | 39/19 | 43.2 | 44.6 | 2.6 ± 1.1 | 2.8 ± 1.1 | Prospective |
NR not reported, N/A not available