Observed v Expected Incidence of Invasive Subsequent Cancers
| Patients . | No. of Patients . | No. of Patients . | SIR = Observed/Expected (O/E) . | 95% CI . | P . |
|---|---|---|---|---|---|
| . | Who Developed Cancer . | Expected to Develop Cancer . | . | . | . |
| 215 (total) | 15 | 8.8 | 1.70 | 0.96-2.84 | .06 |
| 105 patients age <40 yr | 2 | 1.9 | 1.05 | 0.13-3.80 | .56 |
| 110 patients age ≥40 yr | 13 | 6.8 | 1.91 | 1.02-3.27 | .03 |
| Patients . | No. of Patients . | No. of Patients . | SIR = Observed/Expected (O/E) . | 95% CI . | P . |
|---|---|---|---|---|---|
| . | Who Developed Cancer . | Expected to Develop Cancer . | . | . | . |
| 215 (total) | 15 | 8.8 | 1.70 | 0.96-2.84 | .06 |
| 105 patients age <40 yr | 2 | 1.9 | 1.05 | 0.13-3.80 | .56 |
| 110 patients age ≥40 yr | 13 | 6.8 | 1.91 | 1.02-3.27 | .03 |