Table 2.
Cox Proportional Hazard Model With Stabilized Inverse Probability Weighting Propensity and Propensity-Matched Analyses
| Care Delivery | Hazard Ratio (95% CI) | Unadjusted p Value | Adjusted p Valuea |
|---|---|---|---|
| Crude (no adjustments) | |||
| eMTOC vs. non-MTOC: metropolitan | 0.65 (0.58–0.73) | <0.0001 | <0.0001 |
| eMTOC vs. non-MTOC: regional | 0.58 (0.52–0.66) | <0.0001 | <0.0001 |
| Non-MTOC: regional vs. metropolitan | 1.11 (1.04–1.20) | 0.0038 | 0.0106 |
| Stabilized inverse probability weightingb | |||
| eMTOC vs. non-MTOC: metropolitan | 0.83 (0.74–0.92) | 0.0005 | 0.0014 |
| eMTOC vs. non-MTOC: regional | 0.73 (0.65–0.81) | <0.0001 | <0.0001 |
| Non-MTOC: regional vs. metropolitan | 1.14 (1.06–1.23) | 0.0004 | 0.0012 |
| Propensity-matchedb | |||
| eMTOC vs. non-MTOC: metropolitan | 0.63 (0.5–0.81) | 0.0002 | 0.0007 |
| eMTOC vs. non-MTOC: regional | 0.63 (0.49–0.82) | 0.0005 | 0.0016 |
| Non-MTOC: regional vs. metropolitan | 1.00 (0.85–1.17) | 0.9700 | 0.9992 |
Note: Excluding patients with unknown stage. Non-MTOC metropolitan: patients without care planning through the eMTOC, who received care within metropolitan Memphis; non-MTOC regional: patients without care planning through the eMTOC, who received care within institutions outside greater metropolitan Memphis.
CI, confidence interval; eMTOC, enhanced Multidisciplinary Thoracic Oncology Conference; MTOC, Multidisciplinary Thoracic Oncology Conference.
a
Multiple comparisons adjusted using Tukey’s correction.
b
Propensity adjusting for age, race, sex, insurance, and clinical stage.