The November 10, 2012, article by Simon et al, entitled, “Estrogen Plus Progestin and Colorectal Cancer Incidence and Mortality” (J Clin Oncol 30:3983–3990, 2012), contained errors.
In Figure 3B, the number of patients at risk and the number of events were incorrectly given in the table below the curves. The corrected table is listed below, with corrected data given in bold.
Table 1.
| Time (years) | 2 | 4 | 6 | 8 | 10 | 12 | 14 |
|---|---|---|---|---|---|---|---|
| No. at risk | |||||||
| Combined hormone therapy | 8,356 | 8,202 | 7,961 | 7,210 | 6,452 | 5,737 | 1,477 |
| Placebo | 7,950 | 7,791 | 7,573 | 6,804 | 6,066 | 4,862 | 1,195 |
| No. of events | |||||||
| Combined hormone therapy | 5 | 4 | 6 | 4 | 10 | 10 | 7 |
| Placebo | 2 | 3 | 9 | 7 | 8 | 5 | 7 |