Table 2.
Multivariate Regression Analysis Evaluating Predictors of Brachytherapy
| Variable | OR | 95% CI | P |
|---|---|---|---|
| Age | 0.08 | 0.98–0.98 | <.001 |
| Race (vs non-Hispanic white) | |||
| Hispanic | 0.93 | 0.85–1.02 | .115 |
| Non-Hispanic black | 0.93 | 0.86–0.99 | .036 |
| Asian | 1.13 | 0.99–1.29 | .074 |
| Other | 1.12 | 0.91–1.39 | .284 |
| Insurance (vs private) | |||
| Uninsured | 0.72 | 0.65–0.79 | <.001 |
| Medicaid | 0.83 | 0.77–0.89 | <.001 |
| Medicare | 0.85 | 0.78–0.92 | <.001 |
| Other government | 1.01 | 0.77–1.31 | .940 |
| Charlson/Deyo score (vs 0) | |||
| 1 | 0.94 | 0.87–1.02 | .156 |
| 2 | 0.78 | 0.67–0.92 | .003 |
| 3 or higher | 0.60 | 0.46–0.77 | <.001 |
| Residence (vs metropolitan county) | |||
| Urban county | 1.13 | 1.05–1.22 | .002 |
| Rural county | 1.01 | 0.83–1.24 | .886 |
| Year of diagnosis (vs 2004) | |||
| 2005 | 1.20 | 1.05–1.38 | .010 |
| 2006 | 1.09 | 0.95–1.25 | .213 |
| 2007 | 1.05 | 0.92–1.20 | .469 |
| 2008 | 1.17 | 1.02–1.34 | .023 |
| 2009 | 1.18 | 1.03–1.35 | .017 |
| 2010 | 1.20 | 1.05–1.37 | .006 |
| 2011 | 1.63 | 1.42–1.89 | <.001 |
| 2012 | 1.60 | 1.40–1.83 | <.001 |
| 2013 | 1.69 | 1.48–1.93 | <.001 |
| 2014 | 1.47 | 1.29–1.68 | <.001 |
| 2015 | 1.34 | 1.18–1.53 | <.001 |
| Treatment facility location (vs Pacific) | |||
| New England | 1.42 | 1.21–1.67 | <.001 |
| Middle Atlantic | 1.57 | 1.41–1.73 | <.001 |
| South Atlantic | 1.33 | 1.20–1.47 | <.001 |
| East North central | 1.40 | 1.26–1.56 | <.001 |
| East South central | 1.09 | 0.96–1.23 | .171 |
| West North central | 1.58 | 1.38–1.81 | <.001 |
| West South central | 0.89 | 0.79–0.99 | .035 |
| Mountain | 1.03 | 0.88–1.21 | .067 |
| FIGO clinical stage (vs IB2) | |||
| II | 0.90 | 0.82–1.00 | .050 |
| III | 0.53 | 0.48–0.60 | <.001 |
| IVA | 0.20 | 0.17–0.23 | <.001 |
OR, odds ratio; FIGO, International Federation of Gynecology and Obstetrics.
High school completion and median household income were not included in this multivariate analysis.