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Patient Demographics
| Characteristic | SEG | DRG | P |
|---|---|---|---|
| No. | 287 | 142 | |
| Age, yr | 0.564a | ||
| Median | 31 | 34 | |
| IQR | 25−37 | 22−36 | |
| Sex, no. (%) | 0.713b | ||
| Male | 23 (8.0) | 13 (9.2) | |
| Female | 264 (92.0) | 129 (90.8) | |
| Operation history, no. (%) | 0.001b | ||
| Primary | 139 (48.4) | 45 (31.7) | |
| Secondary | 148 (51.6) | 97 (68.3) | |
| Follow-up duration, mo | 0.897a | ||
| Median | 12 | 12 | |
| IQR | 9−13 | 11−13 |
Mann-Whitney test, with P < 0.05 considered statistically significant.
Fisher exact tests, with P < 0.05 considered statistically significant.
