Table 5 Risk factors for time to Locoregional recurrence
Risk factor | n/N (%) | Median survival (95% CI) | RMST at 24-months | Log rank test | HR (95% CI) | ||
|---|---|---|---|---|---|---|---|
Mean (95% CI) | p-value | χ2 | p-value | ||||
Age (years) | Â | Â | Â | 0.369 | 0.568 | 0.451 | Â |
 ≥ 60 | 3/10 (30) | 24 (7–84) | 19.8 (12.5–27) |  |  |  | r (1) |
 < 60 | 7/14 (50) | 18 (9–72) | 15.7 (10.8–20.7) |  |  |  | 1.7 (0.42–7.1) |
Sex | Â | Â | Â | 0.025 | 4.097 | 0.043 | Â |
 Female | 5/15 (33.3) | 72 (9–84) | 20.6 (16.5–24.7) |  |  |  | r (1) |
 Male | 5/9 (55.6) | 9 (1–18) | 11.9 (5.5–18.4) |  |  |  | 5 (1.05–23.4) |
Comorbidity | Â | Â | Â | 0.690 | 0.062 | 0.804 | Â |
 No | 4/11 (36.4) | 24 (2–24) | 17.8 (12.2–23.4) |  |  |  | r (1) |
 Yes | 6/13 (46.2) | 18 (7–84) | 16.2 (10.2–22.1) |  |  |  | 1.2 (0.29–4.9) |
Focality | Â | Â | Â | 0.075 | 2.379 | 0.123 | Â |
 Unifocal | 4/13 (30.8) | 72 (-) | 19.9 (15.8–23.9) |  |  |  | r (1) |
 Multifocal | 6/11 (54.6) | 12 (1–84) | 12.2 (4.8–19.6) |  |  |  | 3.1 (0.74–12.9) |
Adjuvant RAIa | Â | Â | Â | 0.205 | 8.255 | 0.004 | Â |
 Yes | 7/15 (46.7) | 72 (9–84) | 8.5 (7.4–9.5) |  |  |  | r (1) |
 No | 3/9 (33.3) | 7 (1–9) | 6.6 (3.9–9.3) |  |  |  | 39.7 (3.2–490) |