3.2 | SENSITIVITY ANALYSIS
Comparing only mean differences of variables could raise concerns about the robustness and reliability of our results. Thus, we performed sensitivity analyses using Wilcoxon signed ranks test, a non-parametric alternative to the paired t test. Sensitivity analyses indicate that our inferences drawn from t tests are robust to comparing medians of variables before and after lifting COVID-19 lockdown (Appendix 1 and 2).