| Median pain scores | ||||
|---|---|---|---|---|
| Study | Time period | Lidocaine (N = 100) Median (range) | Placebo (N = 100) Median (range) | Reported P |
| Aksoy 2015 | During IUD insertion | 1.00 (0 to 6) | 3.00 (0 to 7) | < 0.001 |
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