Table 2C.
Radiation and survival stratified by histology
| Stage | Radiation | No Radiation | Radiation Difference | |||||
|---|---|---|---|---|---|---|---|---|
| MS | 95% CI | MS | 95% CI | *P value | MS Gain | |||
| In 43,467 patients who did not have surgery squamous cell carcinoma (SCC) | ||||||||
| I | 16 | 15, 17 | 9 | 9, 10 | <0.0001 | 7 | ||
| II | 13 | 12, 15 | 7 | 5, 9 | <0.0001 | 6 | ||
| III | 11 | na | 5 | 4, 5 | <0.0001 | 6 | ||
| IV | 5 | na | 3 | na | <0.0001 | 2 | ||
| Total | 9 | na | 4 | 4, 5 | <0.0001 | 5 | ||
| In 181,188 patients who did not have surgery and had non-SCC | ||||||||
| I | 12 | 19, 20 | 12 | 12, 13 | <0.0001 | <1 | ||
| II | 15 | 14, 17 | 8 | 7, 9 | <0.0001 | 7 | ||
| III | 12 | 11, 12 | 5 | na | <0.0001 | 7 | ||
| IV | 5 | na | 3 | na | <0.0001 | 2 | ||
| Total | 7 | na | 4 | na | <0.0001 | 3 | ||
Note: MS= median survival in months, CI = confidence interval, na= an interval that was too narrow to be computable.
*The P-values are for the overall difference between the time periods for each stage.