Table 7.
Multivariate analysis for survival outcome: surgery versus RT
| Variable | No. of patients at risk | Recurrence-free survival |
Disease-specific overall survival |
||||
|---|---|---|---|---|---|---|---|
| 5-year rate (%) | HR (95 % CI) | p valuea | 5-year rate (%) | HR (95 % CI) | p valuea | ||
| Age (years) | |||||||
| <70 | 45 | 72.4 | 1 | 0.56 | 74.1 | 1 | 0.61 |
| ≥70 | 27 | 59.1 | 0.74 (0.27 – 2.04) | 84.0 | 0.75 (0.25 – 2.26) | ||
| Stage | |||||||
| I | 41 | 89.8 | 1 | <0.01 | 79.3 | 1 | <0.01 |
| II – IV | 32 | 68.7 | 5.53 (1.99 – 15.4) | 72.4 | 5.91 (1.92 – 18.2) | ||
| Treatment pattern | |||||||
| Radiation-basedb | 30 | 62.9 | 1 | 0.14 | 70.6 | 1 | 0.039 |
| Surgery-basedc | 48 | 72.0 | 0.50 (0.20 – 1.26) | 86.7 | 0.32 (0.11 – 0.94) | ||
a
A Cox proportional hazards regression model with age, stage and treatment pattern entered for adjusted p values
b
RT alone
c
Surgery alone, surgery+RT, and RT+surgery