Table 2.
Detailed clinical characteristics of included individuals
| Parameter | All Patients (n = 30) | 6,3 Fr Group | 7,5 Fr Group | p-value |
|---|---|---|---|---|
| Median Age (IQR) | 50.0 (37.0-61.75) | 49.0 (35.5–65.5) | 51.0 (40.0-54.5) | 0.835 (1) |
| Sex, Male/Female (%) | 18/12 (60.0%/40.0%) | 6/9 (40.0%/60.0%) | 12/3 (80.0%/20.0%) | 0.062 (2) |
| Affected Kidney, Left/Right (%) | 20/10 (66.7%/33.3%) | 11/4 (73.3%/26.7%) | 9/6 (60.0%/40.0%) | 0.698 (2) |
| Stone Type (Solitary/Multiple) | 15/15 (50.0%/50.0%) | 7/8 (46.7%/53.3%) | 8/7 (53.3%/46.7%) | 1.000 (2) |
| Median HU (IQR) | 1064.5 (977.0-1223.75) | 1117.0 (1049.5-1300.5) | 1026.0 (891.5-1088.5) | 0.051 (1) |
| Solitary Stone Position | 0.472 (2) | |||
| Renal pelvis (%) | 5 (16.7%) | 1 (6.7%) | 4 (26.7%) | |
| Upper calyx (%) | 3 (10.0%) | 2 (13.3%) | 1 (6.7%) | |
| Medial calyx (%) | 3 (10.0%) | 1 (6.7%) | 2 (13.3%) | |
| Lower calyx (%) | 4 (13.3%) | 3 (20.0%) | 1 (6.7%) | |
| Median biggest stone size, mm (IQR) | 9.0 (7.0–11.0) | 10.0 (7.0–12.0) | 9.0 (7.5–10.0) | 0.414 (1) |
| Median stone volume, mm³ (IQR) | 364.5 (181.8-695.4) | 500.0 (181.8-915.8) | 364.5 (218.8–515.0) | 0.429 (1) |
| DJ Presenting, Yes/No (%) | 17/13 (56.7%/43.3%) | 10/5 (66.7%/33.3%) | 7/8 (46.7%/53.3%) | 0.461 (2) |
| Preoperative urine Culture, positive/negative (%) | 7/23 (23.3%/76.7%) | 5/10 (33.3%/66.7%) | 2/13 (13.3%/86.7%) | 0.387 (2) |
| UAS used/not used (%) | 14/16 (46.7%/53.3%) | 8/7 (53.3%/46.7%) | 6/9 (40%/60%) | 0.714 (2) |
| Median operation Time, min (IQR) | 60.0 (45.75–68.25) | 59.5 (43.5–65.5) | 64.5 (57.0-68.5) | 0.061 (2) |
| Post-Op DJ Stent, yes/no (%) | 24/6 (80%/20%) | 11/4 (73.3%/26.7%) | 9/6 (60%/40%) | 0.438 (2) |
| Median hospitalization Time, hours (IQR) | 27.0 (24.0–28.0) | 26.0 (23.5–33.5) | 27.0 (24.5–27.0) | 0.230 (1) |
| Stone clearance | 26 (87%) | 22 (73%) | 0.33 (2) | |
(1) Mann-Whitney U Test (2) chi-square test
HU hounsfield units, IQR interquartile range, post-op post operative, UAS ureteral access sheath