Genetic Polymorphisms in Genes Related to Oxidative Stress (GSTP1, GSTM1, GSTT1, CAT, MnSOD, MPO, eNOS) and Survival of Rectal Cancer Patients after Radiotherapy

Table 1

Descriptive characteristics of deceased and censored patients.

	All (𝑁=114)		Deceased (𝑁=35)		Censored (𝑁=79)		P
	N	%	N	%	N	%
Sex							.65*
female	36	31.6	10	28.6	26	32.9
male	78	68.4	25	71.4	53	67.1
Age (years), mean			62.1		63.3		.13^†
Age groups (years)							.16^∗
<49	6	5.2	4	11.4	2	2.5
50–59	19	16.7	3	8.6	16	20.3
60–69	70	61.4	21	60.0	49	62.0
70–79	18	15.8	7	20.0	11	13.9
>80	1	0.9	0	0.0	1	1.3
BMI (kg/m^2), mean			26.3		26.0		1.00^†
BMI groups (kg/m^2)							.96^∗
<25	49	43.0	15	42.9	34	43.0
25–29.9	47	41.2	14	40.0	33	41.8
≥30	18	15.8	6	17.1	12	15.2
Stage							<.01^∗
1	10	8.8	1	2.9	9	11.4
2	34	29.8	5	14.3	29	36.7
3	58	50.9	19	54.3	39	49.4
4	12	10.5	10	28.5	2	2.5

^∗𝜒²-test for difference in deceased and censored patients.
^†𝑡-test for difference in deceased and censored patients.