Additional file 1 of Efficacy and cost-effectiveness of VATS versus chest tube drainage in first-episode primary spontaneous pneumothorax with blebs: a propensity score-matched retrospective study

Supplementary Material 1: The flow chart of the study procedures is provided in Appendix 1 (Appendix 1. Flow chart of study procedures.drawio.pdf). The PSM algorithm and baseline characteristics before and after matching are detailed in Appendix 2 (Appendix 2. PSM algorithm and baseline characteristics before and after matching.xlsx). The economic evaluation (cost-effectiveness analysis) is presented in Appendix 3 (Appendix 3. Cost-effectiveness analysis.xlsx), which includes: Monte Carlo simulations, Cost-Effectiveness Plane, Cost-Effectiveness Acceptability Curve (CEAC), and Sensitivity Analysis.