Patterns of Pelvic Radiotherapy in Patients with Stage II/III Rectal Cancer

Table 2

Logistic regression of factors associated with radiation delivery in rectal cancer patients undergoing surgery, SEER17 1998–2007.

	OR	CI (95%)	𝑃 value
Age
<50	10.3	9.13–11.64	<0.0001
50–59	8.09	7.28–8.98	<0.0001
60–69	5.96	5.41–6.57	<0.0001
70–79	2.99	2.73–3.28	<0.0001
>80	1
Stage
II	1
III	1.21	1.14–1.29	<0.0001
Sex
Male	1.18	1.11–1.26	<0.0001
Female	1
SES index
1	1
2	0.97	0.89–1.07	0.5653
3	1.25	1.14–1.38	<0.0001
4	1.18	1.06–1.30	0.0015
5	1.11	1.01–1.22	0.0301
Year
1998	1
1999	1.08	0.91–1.3	0.3758
2000	1.04	0.89–1.12	0.6421
2001	0.96	0.82–1.12	0.5919
2002	1.07	0.91–1.24	0.4243
2003	1.08	0.92–1.25	0.3579
2004	1.13	0.97–1.32	0.1160
2005	1.20	1.02–1.40	0.023
2006	1.33	1.13–1.56	0.0004
2007	1.41	1.20–1.64	<0.0001