Statistical Analysis
desaturation, hypotension
Previous studies have investigated desaturation and hypotension as separate outcomes during endoscopic procedures with propofol sedation combined with an opioid agent. Chiang et alFor continuous variables, the Shapiro-Wilk test was used to assess the distribution. Normally distributed data were presented as means (SDs). Nonnormally distributed data were presented as medians (IQRs), and intergroup comparisons were performed using the Mann-Whitney Data were analyzed in the modified intention-to-treat population, encompassing all randomized patients who underwent endoscopic procedures with available primary outcome data. No interim analysis or imputation for missing data was performed. Statistical analyses were performed using R software, version 3.6.0 (R Foundation for Statistical Computing). For the primary outcome, the significance level was a 2-sided 