Table 1.
Characteristics of Ovarian Cancer Patients in a Study of Inflammatory Markers and Risk of Invasive Ovarian Cancer, Nurses' Health Study (1989–2010), Nurses' Health Study II (1996–2009), and Women's Health Study (1992–2011)
| Characteristic | NHS/NHS II (n = 217) | WHS (n = 159) |
|---|---|---|
| Mean age (SD) at diagnosis, years | 66 (10) | 64 (9) |
| Histological type, % | ||
| Serous | 65 | 58 |
| Endometrioid | 12 | 7 |
| Mucinous | 5 | 4 |
| Other/unknown | 18 | 31 |
| Tumor stage, % | ||
| 1 or 2 | 30 | NA |
| 3 or 4 | 68 | |
| Missing data | 2 | |
| Ovarian cancer death within 3 years of diagnosis, %a | 29 | 27 |
Abbreviations: NA, not available; NHS, Nurses’ Health Study; NHS II, Nurses’ Health Study II; SD, standard deviation; WHS, Women's Health Study.
a Excludes women who did not have a full 3 years of follow-up postdiagnosis.