Figure 2 | Scientific Reports

Figure 2

From: Comparison of natural orifice specimen extraction surgery and conventional laparoscopic-assisted resection in the treatment effects of low rectal cancer

Figure 2

Comparison of long-term curative effect between two groups of patients. (A–D) Overall survival and Disease-Free survival between two groups. (A, B) Before PSM. (C, D) After PSM. (E–G) Comparison of overall survival and disease-free survival of patients with different N stages in the two groups. (E) overall survival before PSM: Log-rank p (CLR-N0 vs. NOSES-N0) = 0.853, HR(CLR-N0/NOSES-N0) = 1.071, Log-rank p (CLR-N1/N2 vs. NOSES-N1/N2) = 0.151, HR(CLR-N1/N2/NOSES-N1/N2) = 2.164. (F) disease-free survival before PSM: Log-rank p (CLR-N0 vs. NOSES-N0) = 0.694, HR(CLR-N0/NOSES-N0) = 1.155, Log-rank p (CLR-N1/N2 vs. NOSES-N1/N2) = 0.276, HR(CLR-N1/N2/NOSES-N1/N2) = 1.839. (G) Overall survival after PSM: Log-rank p (CLR-N0 vs. NOSES-N0) = 0.549, HR(CLR-N0/NOSES-N0) = 1.271, Log-rank p (CLR-N1/N2 vs. NOSES-N1/N2) = 0.371, HR(CLR-N1/N2/NOSES-N1/N2) = 1.765. (H) disease-free survival after PSM: Log-rank p (CLR-N0 vs. NOSES-N0) = 0.378, HR(CLR-N0/NOSES-N0) = 1.408, Log-rank p (CLR-N1/N2 vs. NOSES-N1/N2) = 0.384, HR(CLR-N1/N2/NOSES-N1/N2) = 1.738.

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