Table 3.
Predictors of obstruction management strategy among 1518 women with post-diagnosis bowel obstruction the context of ovarian cancer diagnosed between 1991 and 2005 in SEER-Medicare.
| Overall n=1518 | Non-surgical Management n=1145 | Surgical Management n=373 | Chi- squared p-value | ||||
|---|---|---|---|---|---|---|---|
| No. | (%) | No. | (%) | No. | (%) | ||
| Age at Obstruction | 0.114 | ||||||
| 65 to 70 | 268 | (17.7) | 193 | (16.9) | 75 | (20.1) | |
| 70 to 74 | 523 | (34.5) | 403 | (35.2) | 120 | (32.2) | |
| 75 to 79 | 401 | (26.4) | 292 | (25.5) | 109 | (29.2) | |
| 80 and up | 326 | (21.5) | 257 | (22.4) | 69 | (18.5) | |
| Race | 0.295 | ||||||
| White | 1390 | (91.6) | 1043 | (91.1) | 347 | (93.0) | |
| Black | 59 | (3.9) | 45 | (3.9) | 14 | (3.8) | |
| Other or unknown | 69 | (4.5) | 57 | (4.9) | 12 | (3.2) | |
| Marital Status | 0.061 | ||||||
| Married | 758 | (49.9) | 556 | (48.6) | 202 | (54.2) | |
| Unmarried/Unknown1 | 760 | (50.1) | 589 | (51.4) | 171 | (45.8) | |
| Co-morbidity at obstruction | 0.367 | ||||||
| No comorbidity | 1022 | (67.3) | 760 | (66.4) | 262 | (70.2) | |
| Charlson index=1 | 318 | (20.9) | 243 | (21.2) | 75 | (20.1) | |
| Charlson index >=2 | 178 | (11.7) | 142 | (12.4) | 36 | (9.7) | |
| Year of Obstruction | 0.250 | ||||||
| 1991–1996 | 421 | (27.7) | 321 | (28.0) | 100 | (26.8) | |
| 1997–2001 | 473 | (31.2) | 344 | (30.0) | 129 | (34.6) | |
| 2002–2006 | 624 | (41.1) | 480 | (41.9) | 144 | (38.6) | |
| Tumor Histology | 0.278 | ||||||
| Endometrioid | 108 | (7.1) | 73 | (6.4) | 35 | (9.4) | |
| Mucinous | 78 | (5.1) | 62 | (5.4) | 16 | (4.3) | |
| Other | 460 | (30.0) | 345 | (30.1) | 115 | (30.8) | |
| Serous | 872 | (57.4) | 665 | (58.1) | 207 | (55.5) | |
| Tumor Grade | 0.024 | ||||||
| Well or moderately differentiated | 281 | (18.5) | 214 | (18.7) | 67 | (18.0) | |
| Poorly differentiated or anaplastic | 836 | (55.1) | 610 | (53.3) | 226 | (60.6) | |
| Unknown | 401 | (26.4) | 321 | (28.0) | 80 | (21.4) | |
| Node Stage | 0.010 | ||||||
| N0 | 209 | (13.8) | 139 | (12.1) | 70 | (18.8) | |
| N1 | 130 | (8.6) | 98 | (8.6) | 32 | (8.6) | |
| N2 | 90 | (5.9) | 66 | (5.8) | 24 | (6.4) | |
| Missing | 1089 | (71.7) | 842 | (73.5) | 247 | (66.2) | |
| Obstruction at diagnosis | 0.001 | ||||||
| No | 1331 | (87.7) | 986 | (86.1) | 345 | (92.5) | |
| Yes | 187 | (12.3) | 159 | (13.9) | 28 | (7.5) | |
| Tumor Resection at diagnosis | 0.075 | ||||||
| No | 244 | (16.1) | 195 | (17.0) | 49 | (13.1) | |
| Yes | 1274 | (83.9) | 950 | (83.0) | 324 | (86.9) | |
| Chemotherapy prior to obstruction | 0.624 | ||||||
| No | 680 | (44.8) | 517 | (45.2) | 163 | (43.7) | |
| Yes | 838 | (55.2) | 628 | (54.8) | 210 | (56.3) | |
| Ever-adhesive status | <0.001 | ||||||
| No 560.81 claims | 1247 | (82.1) | 999 | (87.2) | 248 | (66.5) | |
| At least one 560.81 claim | 271 | (17.9) | 146 | (12.8) | 125 | (33.5) | |
1
26 of 760 are of unknown marital status (3.4%).