Colostomy is a simple and effective procedure for severe chronic radiation proctitis

Table 2 Comparisons of patient demographics between the colostomy group and conservative group before treatment n (%)

Characteristics	Diverting colostomy (n = 22)	Conservative treatment (n = 25)	P value
Age (mean ± SD)	60.1 ± 2.2	60.2 ± 2.4	0.964
Gender (female/male)	20/2	23/2	1.0001
Primary malignancy			0.8222
Cervical cancer	19 (86.4)	21 (84)
Endometrial cancer	2 (9.1)	2 (8)
Rectal cancer	1 (4.5)	1 (4)
Prostate cancer	0 (0)	1 (4)
Cumulative radiation dosage (Gy), mean ± SD	80.5 ± 17.3	83.6 ± 20.5	0.8423
Latency period (mo), mean ± SD	8.3 ± 0.8	7.2 ± 1.1	0.2523
Duration from treatment to end of radiotherapy (mo), mean ± SD	16.3 ± 1.3	14.8 ± 1.6	0.2773
Duration of bleeding (month), mean ± SD	7.9 ± 1.0	8.0 ± 1.8	0.4661
Score of bleeding, mean ± SD	2.7 ± 0.5	2.0 ± 0.5	< 0.0013
Mean hemoglobin (g/L), mean ± SD	60.8 ± 18.1	88.2 ± 19.3	< 0.001
Alb (g/L), ( ≤ 35/> 35)	6/16	3/22	0.3391
BMI (kg/m2), ( ≤ 17.5/> 17.5)	3/19	2/23	0.8801
Concomitant radiation uropathy	8 (36.4)	6 (24)	0.355
Radiation enteritis	5 (22.7)	2 (8)	0.3151
Previous abdominal surgery	6 (27.3)	11 (44)	0.234
Diabetes mellitus	2 (9.1)	3 (12)	1.0001
Hypertension	6 (27.3)	7 (28)	0.956

¹χ² test;

²Fisher exact test;

³Wilcoxon rank-sum test. BMI: Body mass index; Alb: Albumin.