Table 4.
Variables1 Associated with having cystectomy in a low volume2 compared to intermediate and high volume hospitals
| Odds Ratio (95% Confidence Interval)3 | |
|---|---|
| Age Group | |
| 18–49 | 1.00 (Reference) |
| 50–59 | 1.2 (1.1–1.4) |
| 60–69 | 1.3 (1.2–1.5) |
| 70–79 | 1.5 (1.3–1.6) |
| >=80 | 1.6 (1.4–1.8) |
| Race | |
| White | 1.0 (Reference) |
| Black | 1.3 (1.2–1.5) |
| Other/UK | 0.6 (0.5–0.7) |
| Insurance | |
| Private | 1.00 (Reference) |
| None, Medicaid | 1.3 (1.2–1.5) |
| Medicare | 1.0 (1.0–1.1) |
| Other, Unknown | 3.0 (2.7–3.4) |
| Neoadjuvant Chemotherapy | |
| No | 1.0 (Reference) |
| Yes | 0.6 (0.5–0.6) |
| Cancer Sequence | |
| First Primary or Only Primary | |
| Other Primary Prior Cancer | 0.8 (0.7–0.8) |
| Grade | |
| Low | 1.0 (Reference) |
| High | 0.7 (0.7–0.8) |
| Missing | 0.7 (0.7–0.8) |
| Elixhauser Comorbid Conditions4 | |
| Congestive Heart Failure | 1.3 (1.1–1.4) |
| Cardiac Arrthymias | 0.9 (0.8–0.9) |
| Chronic Pulmonary Disease | 1.2 (1.2–1.3) |
| Diabetes, Uncomplicated | 1.1 (1.0–1.2) |
| Renal Failure | 1.4 (1.1–1.7) |
| Obesity | 0.9 (0.8–1.0) |
| Fluid, Electrolyte Disorders | 1.2 (1.1–1.3) |
| Blood Loss Anemia | 2.1 (1.7–2.5) |
| Deficiency Anemias | 1.5 (1.4–1.7) |
| Alcohol Abuse | 1.3 (1.1–1.6) |
| Depression | 0.9( 0.8–1.0) |
1
Variables significant at p < .05 in a stepwise logistic regression model.
2
Low volume defined as less than 10 cystectomies per year.
3
N=35,055;17,761 cases in low volume hospitals.
4
Condition present compared to absence of condition.