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The baseline characteristics of the studied patients
| Variable | Number (%) |
|---|---|
| Gender | |
| Male | 21 (41.2) |
| Female | 30 (58.8) |
| Age (year) | |
| 18-29 | 11 (21.6) |
| 30-39 | 21 (41.2) |
| 40-49 | 11 (21.6) |
| 50-59 | 7 (13.7) |
| ≥60 | 1 (1.9) |
| Analgesic consumption before admission | |
| Yes | 43 (84.3) |
| No | 8 (15.7) |
