reached borderline significanceP = 0.058
Sex, age, ASA classification were independent risk factors for DFS (HR 1.563, 95% CI 1.021–2.394, P = 0.040; HR 1.034, 95% CI 1.015–1.052, P < 0.001; HR 2.228, 95% CI 1.386–3.584, P < 0.001, respectively), and the prognostic effect of PNI on DFS reached borderline significance (HR 1.583, 95% CI 0.985–2.545, P = 0.058) (Table 3 ).