Effects of enhanced recovery after surgery on postoperative intestinal function and intestinal flora during laparoscopic gastric cancer surgery

Figure 4 Cox regression analysis of factors affecting intestinal flora diversity. The Cox regression analysis of postoperative intestinal flora diversity recovery shows that enhanced recovery after surgery protocol, high Shannon index, early oral intake, and operative time less than 240 minutes are protective factors (hazard ratio > 1), while advanced age, prolonged antibiotic use, and tumor-node-metastasis stage III are adverse factors (hazard ratio < 1). ERAP: Emergency Rental Assistance Program; TNM: Tumor-node-metastasis.