Table 3. Patient demographics across other studies reported in the literature.
| Study | Type of study | Country of origin of study | Number of Patients (procedures) | Definition of elderly (years) | Mean Age, years ± SD (range) | Mean largest individual stone diameter, mm ± SD (range) | Mean cumulative stone diameter, mm ± SD (range) |
|---|---|---|---|---|---|---|---|
| Akman et al. 2012 (11) | Prospective | Turkey | 28 | >65 | 68.9±4.1 | 15 to 30 (no mean available) | / |
| Tolga-Gulpinar et al. 2015 (10) | Retrospective | Turkey | 170 | >60 | 66.5 (61-87) | / | 17.2 (7.2) |
| Hu et al. 2016 (12) | Retrospective | China | 80 | >60 | 65.1±5.2 | / | 15.8 (3.4) |
| Yoshioka et al. 2016 (13) 65-74 Years >75 Years | Retrospective | Japan | 42 | 65-74 | 69.26±2.92 | 9.56±3.27 | / |
| 39 | >75 | 79.46±4.69 | 8.80±3.16 | / | |||
| Berardinelli et al. 2017 (14) | Prospective | Italy | 91 | >65 | 72.1±5.06 | / | 13.05 (5.79) |
| Current Study | Prospective | UK | 110 (121) | >70 | 77.2 (70-91) | 10.6 (3-37) | 17.1 (3-156) |