Table 1 Demographic characteristics
|  | Total cohort (n = 85) | IP recurrence (15.3%, n = 13) | No IP recurrence (85.7%, n = 72) | HR | 95% CI | p value |
|---|---|---|---|---|---|---|
Age at surgery, in years Mean (SD) | 55.7 (14.8) | 56.5 (7.0) | 55.6 (15.9) | 1.02 | 0.98–1.06 | 0.45 |
Sex Female, n (%) | 31 (36.5) | 3 (23.1) | 28 (38.9) | 0.40 | 0.11–1.50 | 0.17 |
Follow-up time, in months Mean (SD) | 36.4 (33.8) | 57.1 (31.4) | 39.5 (34.1) | 0.97 | 0.95–1.00 | 0.07 |
Prior surgery at external site, n (%) | 37 (43.5) | 6 (46.2) | 31 (43.1) | 1.28 | 0.41–4.03 | 0.67 |