Table 1. Patient Demographics, Comorbid Conditions, Stone Characteristics, and PCNL Procedure Details.
Data given as frequency (percentage), except where marked as mean ± SD
PCNL: percutaneous nephrolithotomy
| Variable | Frequency (percentage) | |
| Age (years) | Mean ± SD | 45.39 ± 12.43 |
| Gender | Male | 240 (56.87) |
| Female | 182 (43.13) | |
| Body Mass Index (kg/m²) | Mean ± SD | 27.82 ± 4.21 |
| Comorbid Conditions | Diabetes Mellitus | 80 (18.95) |
| Hypertension | 90 (21.43) | |
| Chronic Kidney Disease | 30 (7.11) | |
| Other | 50 (11.85) | |
| Stone Size (cm) | Mean ± SD | 3.21 ± 1.13 |
| Location | Upper Calyx | 120 (28.44) |
| Mid Calyx | 100 (23.70) | |
| Lower Calyx | 80 (18.96) | |
| Pelvis | 70 (16.59) | |
| Multiple Locations | 52 (12.32) | |
| Composition | Calcium Oxalate | 150 (35.55) |
| Struvite | 70 (16.59) | |
| Uric Acid | 60 (14.22) | |
| Cystine | 30 (7.11) | |
| Mixed | 112 (26.54) | |
| PCNL Procedure | Standard PCNL | 312 (73.93) |
| Mini-PCNL | 110 (26.07) | |
| Operative Time (minutes) | Mean ± SD | 85.42 ± 20.31 |
| Number of Tracts Used | Mean ± SD | 1.56 ± 0.68 |