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Comparison of complications between the two groups, n (%)
| Complication | Needle free sling group (n = 44) | Middle urethra suspension group (n = 44) | χ2 | P value |
| Infection | 1 (2.27) | 3 (6.82) | 2.386 | 0.122 |
| Hematoma | 0 (0.00) | 1 (2.27) | 2.296 | 0.130 |
| Urinary retention | 1 (2.27) | 2 (4.55) | 0.789 | 0.374 |
| Incidence of complications | 2 (4.55) | 6 (13.64) | 4.997 | 0.025 |
