TABLE 4—
Adjusted Odds Ratios for Receiving Surgery, Chemotherapy, and Radiation for Rectal Cancer Cases: Georgia Comprehensive Cancer Registry, 2000–2007
| CT-Level Variables | Surgery, AORa (95% CI) | Chemotherapy, AORa (95% CI) | Radiotherapy, AORa (95% CI) |
| Geographic residency status | |||
| Urban (Ref) | 1.00 | 1.00 | 1.00 |
| Suburban | 0.92 (0.75, 1.14) | 1.13 (0.98, 1.32) | 1.15 (1.00, 1.33) |
| Rural | 0.81 (0.63, 1.04) | 0.88 (0.72, 1.06) | 0.90 (0.75, 1.08) |
| Socioeconomic status | |||
| High or upper middle (Ref) | 1.00 | 1.00 | 1.00 |
| Lower middle | 0.95 (0.77, 1.17) | 0.98 (0.84, 1.14) | 1.08 (0.94, 1.25) |
| Low | 0.69 (0.54, 0.88) | 0.99 (0.83, 1.20) | 1.15 (0.96, 1.37) |
Note. AOR = adjusted odds ratio; CI = confidence interval CT = census tract. For surgery, the total study sample was n = 5 638; 85.4% underwent surgery. For chemotherapy and radiation, the sample size was n = 5 720; 49.2% received chemotherapy and 40.4% received radiation.
a
Adjusted for the variables listed and for age, gender, race, disease stage, and tumor grade.