TABLE 3.
Hazard Ratios of Death (HRs) (95% CI) for Metastatic Melanoma Patients
| HR | 95% CI | P | |
|---|---|---|---|
| Hospital volume | |||
| Lowest | 1.00 | Reference | |
| Middle | 0.91 | 0.80–1.02 | 0.11 |
| Highest | 0.79 | 0.69–0.90 | < 0.0001 |
| Year of death | |||
| 2000–2001 | 1.00 | Reference | |
| 2002–2003 | 0.71 | 0.58–0.87 | < 0.01 |
| 2004–2005 | 0.60 | 0.49–0.74 | < 0.0001 |
| 2006–2007 | 0.57 | 0.47–0.70 | < 0.0001 |
| 2008–2009 | 0.45 | 0.37–0.56 | < 0.0001 |
| Hospice care | |||
| 0–3 days | 1.00 | Reference | |
| 4 + days | 0.55 | 0.46–0.65 | < 0.0001 |
| Comorbidity scores | |||
| 0 | 1.00 | Reference | |
| 1 | 1.14 | 1.00–1.30 | 0.04 |
| ≥2 | 1.23 | 1.08–1.41 | < 0.01 |
The other demographic variables and hospital variables such as year of death, age, sex, median household income, education, geographic region, referral center status, teaching hospital, urban/rural hospitals were all nonsignificant in the full model and were, therefore, excluded in the reduced model.
CI indicates confidence interval.