Table 3. Results of OS rates for patients treated with a sublobectomy or lobectomy in three different cohorts.
| Study cohort | Survival model | HR (Sub vs. Lob) | 95% CIs | P value |
|---|---|---|---|---|
| Unmatched | Univariable | 0.507 | 0.432–0.597 | <0.001 |
| Unmatched | Multivariable | 0.787 | 0.629–0.985 | 0.037 |
| Propensity-based matched | Univariable | 0.619 | 0.473–0.810 | <0.001 |
| Propensity-based matched | Multivariable | 0.723 | 0.549–0.953 | 0.021 |
| IPTW weighted | Univariable | 0.796 | 0.714–0.888 | <0.001 |
| IPTW weighted | Multivariable | 0.724 | 0.646–0.812 | <0.001 |
Survival model was constructed by Cox proportional hazards regression. OS, overall survival; HR, Hazard ratio; CIs, confidence intervals; IPTW, inverse probability of treatment weighted; Sub, sublobectomy; Lob, lobectomy.