Survival multivariate Cox proportional HR analysis
| HR | p-value | 95% CI | |
| Age (years) | 1.03 | <0.001 | 1.03 to 1.03 |
| Race (reference: white) | 1.18 | <0.001 | 1.15 to 1.22 |
| Spanish (reference: non-Spanish) | 0.89 | <0.001 | 0.85 to 0.93 |
| Charlson score (0–2) | 1.16 | <0.001 | 1.14 to 1.18 |
| Insurance (reference: government) | 1 | ||
| Not insured | 1.24 | <0.001 | 1.18 to 1.31 |
| Private | 0.87 | <0.001 | 0.84 to 0.89 |
| Year of diagnosis (2004–2016) | 0.99 | <0.001 | 0.98 to 0.99 |
| Distance to hospital (miles) | 1.00 | <0.001 | 1.00 to 1.00 |
| FIGO stage (reference: stage I) | 1 | ||
| Stage II | 2.00 | <0.001 | 1.90 to 2.10 |
| Stage III | 4.55 | <0.001 | 4.39 to 4.72 |
| Stage IV | 8.34 | <0.001 | 8.03 to 8.66 |
| Counties of residence (reference: metropolitan>1 million) | |||
| Metropolitan<2 50 000 | 1.11 | <0.001 | 1.08 to 1.15 |
| Metropolitan 250 000 to 1 million | 1.11 | <0.001 | 1.08 to 1.13 |
| Urban>20 000, close to metro | 1.05 | 0.03 | 1.01 to 1.10 |
| Urban>20 000, not close to metro | 1.04 | 0.34 | 0.96 to 1.12 |
| Urban 2500–19 999, close to metro | 1.13 | <0.001 | 1.08 to 1.18 |
| Urban 2500–19 999, not close to metro | 1.13 | <0.001 | 1.06 to 1.20 |
| Rural <2500, close to metro | 1.12 | 0.02 | 1.02 to 1.24 |
| Rural <2500, not close to a metro | 1.17 | 0.002 | 1.06 to 1.29 |
HR, p-value and 95% CI for variables shown to be of significance in the univariate analysis with significant difference shown in those of rural populations. For the multivariate model we created dummy variables for three of the categorical variables: race was dichotomized into white and non-white, and Charlson comorbidities score into ≤2 and >2, while insurance status was divided into government (reference), private, and non-insured.
FIGO, International Federation of Gynecology and Obstetrics.