Characteristics of all patients in Ontario, Canada, with nonepithelial cell ovarian cancer who had initial surgery between 1996 and 1998 (n = 1341)
| Characteristic | No. (%) of patients* |
|---|---|
| Patient | |
| Age, yr | |
| 18–44 | 158 (11.8) |
| 45–59 | 436 (32.6) |
| 60–69 | 363 (27.0) |
| ≥ 70 | 384 (28.6) |
| Size of community | |
| ≥ 1 250 000 | 483 (36.0) |
| 500 000 – 1 249 999 | 177 (13.2) |
| 100 000 – 499 999 | 324 (24.2) |
| 10 000 – 99 999 | 139 (10.4) |
| < 10 000 | 178 (13.3) |
| Missing | 40 (3.0) |
| Income quintile | |
| First quintile | 258 (19.2) |
| Second quintile | 245 (18.3) |
| Third quintile | 239 (17.8) |
| Fourth quintile | 272 (20.3) |
| Fifth quintile | 251 (18.7) |
| Missing | 76 (5.7) |
| Prior diagnosis of cancer | |
| Yes | 99 (7.4) |
| No | 1209 (90.2) |
| Missing | 33 (2.5) |
| Charlson comorbidity score | |
| 0–1 | 1279 (95.4) |
| ≥ 2 | 62 (4.6) |
| Disease | |
| Stage | |
| 1 | 330 (25.0) |
| 2 | 164 (12.2) |
| 3 | 756 (56.0) |
| 4 | 91 (6.8) |
| Grade | |
| Undifferentiated | 21 (1.6) |
| Poor | 570 (42.4) |
| Moderate | 323 (24.0) |
| Well | 189 (14.3) |
| NS | 238 (17.8) |
| Histologic type | |
| Serous | 744 (55.4) |
| Nonserous | 596 (44.6) |
| Surgical experience | |
| Surgery | |
| Elective | 1175 (87.6) |
| Urgent | 117 (8.7) |
| Emergent | 49 (3.7) |
| Discipline of primary surgeon | |
| Obstetrician/gynecologist | 664 (49.5) |
| Gynecologic oncologist | 485 (36.2) |
| General surgeon | 158 (11.8) |
| Other | 15 (1.1) |
| Missing | 19 (1.4) |
| Surgeon volume (ovarian cancer surgical volume) | |
| Mean (SD) [median] | 14.5 (16.5) [4] |
| No. patients in 3 yr | |
| 1–2 | 425 (31.7) |
| 3–9 | 403 (30.0) |
| ≥ 10 | 496 (37.0) |
| Missing | 17 (1.3) |
| Hospital type | |
| Gynecologic oncologist on staff | 626 (46.7) |
| Regional cancer or teaching centre | 98 (7.3) |
| Community hospital | 617 (46.0) |
| Hospital volume | |
| Mean (SD) [median] | 42.3 (36) [24] |
| No. patients in 3 yr | |
| 1–15 | 515 (38.4) |
| 16–99 | 721 (53.8) |
| ≥ 100 | 104 (7.8) |
| Length of the operation, mean (SD) [median] | 110.6 (52.8) [104] |
| Length of stay in hospital, mean (SD) [median] | 9.7 (10.6) [7] |
| Quality indicator | |
| Inadequate | 638 (47.6) |
| Adequate | 177 (13.2) |
| Undefined | 526 (39.2) |
| Days from admission to surgery, mean (SD) [median] | 2.3 (3.1) [1] |
| Postsurgical management | |
| Treatment | |
| Surgery | 506 (37.7) |
| Surgery + CT | 764 (57.0) |
| Surgery + RT | 38 (2.8) |
| Surgery + RT + CT | 33 (2.5) |
| Outcomes under study | |
| Second operation unrelated to complications (< 5 mo) | 84 (6.3) |
| Total deaths documented (median survival time, d)† | 893 (66.6) |