Table 2.
Multivariable logistic regression analysis predicting receipt of definitive therapy in patients with low-risk prostate and limited life expectancy.
| OR | 95% CI | p-value | |
|---|---|---|---|
| Continuous Variables | |||
| PSA, ng/ml | 1.01 | 1.00–1.03 | 0.118 |
| Categorical Variables | |||
| Life Expectancy | |||
| 66–69 & CCI2 | reference | ||
| 70–74 & CCI≥1 | 0.76 | 0.60–0.96 | 0.023 |
| 75–79 & all CCI | 0.35 | 0.28–0.44 | <0.001 |
| ≥80 & all CCI | 0.12 | 0.09–0.15 | <0.001 |
| Race | |||
| White | reference | ||
| Black | 0.86 | 0.75–0.98 | 0.027 |
| Other | 0.97 | 0.76–1.24 | 0.831 |
| Unknown | 0.68 | 0.50–0.93 | 0.015 |
| Year of Diagnosis | |||
| 2004 | reference | ||
| 2005 | 0.93 | 0.79–1.09 | 0.367 |
| 2006 | 0.87 | 0.75–1.02 | 0.090 |
| 2007 | 0.87 | 0.74–1.01 | 0.072 |
| 2008 | 0.61 | 0.52–0.72 | <0.001 |
| 2009 | 0.42 | 0.36–0.50 | <0.001 |
| 2010 | 0.38 | 0.32–0.44 | <0.001 |
| 2011 | 0.33 | 0.28–0.38 | <0.001 |
| 2012 | 0.25 | 0.21–0.30 | <0.001 |
| 2013 | 0.18 | 0.15–0.22 | <0.001 |
| Clinical T Stage | |||
| 1 | reference | ||
| 2 | 1.46 | 1.31–1.63 | <0.001 |
| Insurance Type | |||
| Private | reference | ||
| Medicaid | 0.87 | 0.61–1.24 | 0.440 |
| Medicare | 0.89 | 0.79–1.00 | 0.046 |
| Other government | 2.00 | 1.23–3.24 | 0.005 |
| Not insured | 0.37 | 0.21–0.63 | <0.001 |
| Unknown | 0.65 | 0.49–0.87 | 0.003 |
| Income | |||
| ≥$63,000 | reference | ||
| $48–62,999 | 0.91 | 0.81–1.02 | 0.119 |
| $38–47,999 | 0.95 | 0.83–1.09 | 0.456 |
| ≤$37,999 | 0.87 | 0.73–1.03 | 0.109 |
| Unknown | 4.44 | 0.43–45.40 | 0.209 |
| Education Level | |||
| (≥21%) | reference | ||
| 13% – 20.9% | 1.13 | 0.98–1.29 | 0.087 |
| 7% – 12.9% | 1.00 | 0.86–1.17 | 0.951 |
| ≤6.9% | 0.98 | 0.82–1.16 | 0.796 |
| Unknown | 0.19 | 0.01–2.98 | 0.234 |
| Great Circle Distance, Miles | |||
| ≤12.4 | reference | ||
| 12.5–49.9 | 1.10 | 1.01–1.21 | 0.028 |
| ≥50 | 1.34 | 1.14–1.58 | <0.001 |
| Urban/Rural Status | |||
| Metro | reference | ||
| Urban | 1.12 | 0.98–1.27 | 0.087 |
| Rural | 1.12 | 0.86–1.47 | 0.404 |
| Unknown | 1.06 | 0.80–1.41 | 0.515 |
| Facility Type | |||
| Comprehensive Community Cancer Center | reference | ||
| Community Cancer center | 0.52 | 0.41–0.65 | <0.001 |
| Integrated network cancer | 0.84 | 0.54–1.32 | 0.460 |
| Academic | 0.35 | 0.28–0.45 | <0.001 |
| Other | 3.13 | 0–5.50 | 0.999 |
| Facility Case Volume | |||
| Very Low (≤20/year) | reference | ||
| Low (21–36/year) | 1.01 | 0.79–1.29 | 0.914 |
| High (37–66/year) | 0.97 | 0.72–1.31 | 0.854 |
| Very High (≥67/year) | 1.10 | 0.75–1.62 | 0.614 |
| Facility Location | |||
| New England | reference | ||
| Middle Atlantic | 3.07 | 2.00–4.73 | <0.001 |
| South Atlantic | 2.15 | 1.43–3.22 | <0.001 |
| East North Central | 2.02 | 1.34–3.04 | 0.001 |
| East South Central | 3.72 | 2.20–6.29 | <0.001 |
| West North Central | 2.79 | 1.76–4.43 | <0.001 |
| West South Central | 2.17 | 1.31–3.59 | 0.003 |
| Mountain | 3.36 | 1.97–5.75 | <0.001 |
| Pacific | 2.37 | 1.49–3.72 | <0.001 |