Table 1.
Patients characteristics in the unmatched and propensity score-matched cohorts.
| Unmatched cohort | Propensity score-matched cohort | |||||
|---|---|---|---|---|---|---|
| GA (n = 61) | SA (n = 59) | p | GA (n = 40) | SA (n = 40) | p | |
| Age, years | 53.2 ± 15.7 | 58.0 ± 14.6 | 0.088 | 54.9 ± 16.9 | 55.8 ± 13.9 | 0.77 |
| Sex, n (%) | 0.12 | 0.63 | ||||
| Male | 34 (55.7) | 41 (69.5) | 28 (70.0) | 26 (65.0) | ||
| Female | 27 (44.3) | 18 (30.5) | 12 (30.0) | 14 (35.0) | ||
| BMI, kg/m2 | 24.7 (2.7) | 25.4 (2.7) | 0.17 | 25.0 (2.6) | 25.4 (2.9) | 0.50 |
| ASA class, n (%) | 0.29 | 0.30 | ||||
| I | 14 (23) | 21 (35.6) | 10 (25) | 13 (32.5) | ||
| II | 41 (67.2) | 32 (54.2) | 28 (70) | 22 (55) | ||
| III | 6 (9.8) | 6 (10.2) | 2 (5.0) | 5 (12.5) | ||
| Side, n (%) | 0.47 | 0.50 | ||||
| Right | 27 (44.3) | 30 (50.8) | 19 (47.5) | 22 (55) | ||
| Left | 34 (55.7) | 29 (49.2) | 21 (52.5) | 18 (45) | ||
| Multiple stones, n (%) | 26 (42.6) | 29 (49.2) | 0.47 | 17 (42.5) | 20 (50.0) | 0.50 |
| Concomitant ureteral stones, n (%) | 14 (23) | 22 (37.3) | 0.087 | 11 (27.5) | 11 (27.5) | >0.999 |
| Stone burden, mm | 13.8 ± 5.5 | 11.9 ± 5.4 | 0.063 | 12.3 ± 4.1 | 12.3 ± 5.4 | >0.999 |
| Previous stones surgeries, n (%) | 41 (67.2) | 31 (52.5) | 0.101 | 24 (60.0) | 24 (60.0) | >0.999 |
| Stone location, n (%) | 0.28 | 0.65 | ||||
| Superior calyces | 5 (8.2) | 10 (16.9) | 5 (12.5) | 4 (10) | ||
| Middle calyces | 15 (24.6) | 13 (22) | 9 (22.5) | 7 (17.5) | ||
| Inferior calyces | 25 (41) | 26 (44.1) | 16 (40) | 18 (45) | ||
| Renal pelvis | 39 (63.9) | 32 (54.2) | 24 (60) | 24 (60) | ||
| Hydronephrosis, n (%) | 19 (31.1) | 30 (50.8) | 0.028 | 15 (37.5) | 17 (47.5) | >0.999 |
ASA = American Society of Anesthesiologists; BMI = body mass index.