Evaluating the benefit of adjuvant chemotherapy in patients with ypT0–1 rectal cancer treated with preoperative chemoradiotherapy

Table 3 Risk factors associated with recurrence-free survival

		Univariate		Multivariate
		HR	P value	HR	95%CI	P value
Adjuvant chemotherapy			0.459			0.608
	No	1		1
	Yes	1.331		1.226	0.563–2.671
Sex			0.582
	Male	1
	Female	1.77			0
cT category			0.082			0.035
	cT1–2	1		1
	cT3–4	2.031		2.565	1.06–6.156
cN category			0.399
	cN−	1
	cN+	0.756
Type of surgery			0.927
	Local excision	1
	Radical resection	1.038
ypT stage			0.389
	ypT0	1
	ypTis–1	0.757

HR: Hazard ratio; CI: Confidence interval.