Table 1.
Baseline Demographics and Clinical Characteristics of the Study Patient Population
| Characteristic | Treatment |
|||
|---|---|---|---|---|
| Placebo (n = 521) |
Selenium (n = 1,040) |
|||
| No. of Patients | % | No. of Patients | % | |
| Age, years | ||||
| Median | 66 | 66 | ||
| Range | 38-86 | 24-93 | ||
| Smoking history | ||||
| Active or stopped < 1 year ago | 150 | 28.8 | 298 | 28.7 |
| Stopped ≥ 1 year ago | 321 | 61.6 | 646 | 62.1 |
| Never smoked or ≤ 100 cigarettes | 50 | 9.6 | 96 | 9.2 |
| Sex | ||||
| Male | 250 | 48 | 509 | 49 |
| Female | 271 | 52 | 531 | 51 |
| Stage | ||||
| Ia | 339 | 65.1 | 677 | 65.1 |
| Ib with previous therapy* | 15 | 3.9 | 30 | 2.9 |
| Ib with no therapy | 159 | 30.5 | 312 | 30 |
| Missing | 8 | 1.5 | 21 | 2 |
*
Other primary therapy in addition to surgery (adjuvant chemotherapy, radiation therapy, or biologic agent).