Effect of modified Da-Cheng-Qi decoction on stoma reversal and postoperative ileus after laparoscopic anterior resection

Figure 1 Kaplan-Meier survival curves for cumulative stoma reversal rate between two groups. This figure shows the Kaplan-Meier curves comparing the cumulative stoma reversal rate over time between the observation group (receiving modified Da-Cheng-Qi decoction, n = 132, blue line) and the control group (receiving conventional treatment only, n = 151, gray line). The X-axis represents time after initial stoma surgery in days, and the Y-axis represents the cumulative proportion of patients who achieved stoma reversal. The observation group demonstrated significantly earlier stoma reversal compared to the control group (log-rank test: χ² = 54.582, P < 0.001), with the median reversal time being approximately 24 days shorter in the observation group. The steeper slope of the observation group curve between 80-140 days indicates accelerated stoma closure during this critical period.