Table 3.
Cox regression survival analysis by age groups compared with patients <75 years old, hazard ratio (95% CI 1), 2006–2015 (p < 0.001).
| Age Group | <75 Years Old | 75–79 Years Old | 80–84 Years Old | 85–89 Years Old | ≥90 Years Old |
|---|---|---|---|---|---|
| FCR 2 0 | 1.00 | 2.16 (1.91–2.44) | 2.83 (2.52–3.18) | 4.54 (4.05–5.10) | 6.77 (5.93–7.72) |
| FCR 1 | 1.00 | 2.83 (2.43–3.29) | 5.10 (4.43–5.89) | 7.69 (6.56–9.02) | 16.16 (12.88–20.28) |
| FCR 2 | 1.00 | 1.64 (1.43–1.88) | 2.31 (2.02–2.65) | 3.08 (2.61–3.65) | 5.12 (3.94–6.64) |
| FCR 3 | 1.00 | 1.32 (1.20–1.44) | 1.80 (1.64–1.97) | 2.44 (2.19–2.72) | 3.62 (3.06–4.29) |
| FCR 4 | 1.00 | 1.57 (1.32–1.87) | 2.03 (1.71–2.41) | 2.85 (2.35–3.46) | 4.95 (3.82–6.42) |
| FCR 5 | 1.00 | 2.04 (1.73–2.40) | 2.99 (2.54–3.51) | 4.18 (3.49–5.01) | 6.71 (5.15–8.73) |
| FCR 6 | 1.00 | 1.65 (1.46–1.87) | 1.96 (1.71–2.25) | 3.06 (2.57–3.64) | 4.82 (3.58–6.48) |
| All patients | 1.00 | 1.62 (1.54–1.69) | 2.23 (2.13–2.34) | 3.21 (3.04–3.38) | 5.28 (4.91–5.69) |
1 CI, confidence interval. 2 FCR, Finnish Cancer Registry classes: 0, unknown; 1, localized; 2, non-localized, regional lymph node metastasis only; 3, metastasized further than to regional lymph nodes or invading adjacent tissues; 4, non-localized, no information on extent; 5, locally advanced, tumor invasion to adjacent tissues; and 6, non-localized, including distant lymph node metastasis.