Table 2. Results of DSS 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 | 0.513 | 0.418–0.628 | <0.001 |
| Unmatched | Multivariable | 0.702 | 0.538–0.915 | 0.009 |
| Propensity-based matched | Univariable | 0.597 | 0.427–0.835 | 0.003 |
| Propensity-based matched | Multivariable | 0.689 | 0.490–0.968 | 0.032 |
| IPTW weighted | Univariable | 0.825 | 0.720–0.946 | 0.006 |
| IPTW weighted | Multivariable | 0.765 | 0.665–0.882 | <0.001 |
Survival model was constructed by Cox proportional hazards regression. DSS, disease-specific survival; HR, hazard ratio; CIs, confidence intervals; IPTW, inverse probability of treatment weighting; Sub, sublobectomy; Lob, lobectomy.