Table 3.
Characteristics of study population diagnosed in 2005, 2010, and 2015 by receipt of postoperative chemotherapy, and odds of having postoperative chemotherapy (n=1,136).
| Postoperative Chemotherapy Unweighted n (weighted %)a |
Unadjusted | Adjustedc | |||
|---|---|---|---|---|---|
| Characteristics | Value | Yes | No | Chi square | Odds Ratio & |
| (n = 587) | (n = 549) | p-value | 95% CI | ||
| Hospital Size | <500 Beds | 419 (74.0%) | 406 (79.7%) | 0.0415 | 1.00 (REF) |
| ≥500 Beds | 168 (26.0%) | 143 (20.3%) | 1.34 (0.98 – 1.84) | ||
| Stage | II | 228 (39.0%) | 288 (47.9%) | 0.0022 | 1.00 (REF) |
| III | 359 (61.0%) | 261 (52.1%) | 1.43 (1.10 – 1.85) | ||
| Age | 18–54 | 246 (32.6%) | 175 (34.2%) | 0.0001 | 1.38 (0.90 – 2.12) |
| 55–64 | 178 (31.7%) | 133 (19.3%) | 2.87 (1.80 – 4.57) | ||
| 65–74 | 104 (20.8%) | 130 (25.7%) | 1.10 (0.70 – 1.73) | ||
| ≥75 | 59 (14.9%) | 111 (20.8%) | 1.00 (REF) | ||
| Gender | Male | 303 (53.2%) | 300 (60.1%) | 0.0444 | 1.00 (REF) |
| Female | 284 (46.8%) | 249 (39.9%) | 1.50 (1.12 – 2.02) | ||
| Race | Caucasian | 330 (81.0%) | 306 (82.3%) | 0.4538 | 1.00 (REF) |
| African American | 109 (7.3%) | 118 (7.6%) | 0.87 (0.62 – 1.21) | ||
| Other | 148 (11.7%) | 125 (10.1%) | 1.10 (0.82 – 1.47) | ||
| Marital Statusb | Married | 339 (51.5%) | 286 (54.4%) | 0.7428 | 1.00 (REF) |
| Single | 109 (17.9%) | 103 (15.5%) | 1.24 (0.84 – 1.82) | ||
| Separated/Divorced | 65 (15.1%) | 76 (16.2%) | 0.82 (0.54 – 1.26) | ||
| Widowed | 57 (15.5%) | 60 (13.9%) | 1.49 (0.89 – 2.49) | ||
| Charlson Score | Score of 0 | 445 (74.5%) | 379 (66.5%) | 0.0099 | 1.00 (REF) |
| Score of ≥1 | 142 (25.5%) | 170 (33.5%) | 0.69 (0.49 – 0.97) | ||
| Year | 2005 | 188 (25.1%) | 182 (26.8%) | 0.6183 | 1.00 (REF) |
| 2010 | 183 (28.1%) | 179 (29.5%) | 1.05 (0.70 – 1.57) | ||
| 2015 | 216 (46.8%) | 188 (43.7%) | 1.04 (0.73 – 1.47) | ||
| Treatment Sequence | No CRT | - | 130 (26.5%) | < 0.0001 | Not included in model |
| Preop CRT | - | 341 (60.0%) | |||
| Preop CRT & Postop Chemo | 328 (52.0%) | - | |||
| Postop CRT | 189 (32.7%) | - | |||
| Postop Chemo Only | 70 (15.4%) | - | |||
| Preop RT Only | - | 14 (2.1%) | |||
| Postop RT Only | - | 13 (2.0%) | |||
| Other | - | 51 (9.4%) | |||
a
All proportions are column % and were calculated using sample weights as described in Methods. Unweighted numbers of patients were shown to reflect actual sample size. Only patients diagnosed in 2005, 2010, or 2015 were included.
b
41 individuals had unknown marital status, and these subjects were not included in the model.
c
Odds ratios adjusted for all other variables included in the table unless otherwise noted.