Table 2. Multivariable analysis of individuals with rectal cancer in relation to time from diagnosis.

	Odds of deatha within
	1 Month of diagnosis		1–3 Months of diagnosis		3–12 Months of diagnosis
Characteristic	OR	95% CI	OR	95% CI	OR	95% CI
Year of diagnosis	0.87	0.81–0.95	0.91	0.85–0.97	0.98	0.94–1.03
Age at diagnosis	1.03	1.02–1.04	1.04	1.03–1.04	1.04	1.03–1.04
Sex
Male	1.00		1.00		1.00
Female	0.99	0.87–1.12	0.86	0.77–0.97	0.91	0.84–0.99
Surgical treatment
Resection	1.00		1.00		1.00
Palliative	1.4	1.07–1.83	3.81	3.17–4.57	5.58	4.90–6.35
No surgery	3.14	2.59–3.80	3.44	2.95–4.00	3.53	3.19–3.91
Unknown	21.59	17.03–27.36	3.43	2.52–4.68	2.55	2.00–3.26
Charlson co-morbidity score
0	1.00		1.00		1.00
1	1.61	1.35–1.93	1.22	1.03–1.45	1.18	1.03–1.35
2	1.59	1.23–2.06	1.31	1.02–1.68	1.66	1.36–2.03
⩾3	2.01	1.54–2.65	1.84	1.39–2.41	1.43	1.10–1.85
Unknownb	Omitted		Omitted		Omitted
Index of Multiple Deprivation income category
Most affluent	1.00		1.00		1.00
2	1.12	0.91–1.38	1.06	0.88–1.28	0.94	0.83–1.07
3	1.16	0.94–1.42	1.24	1.04–1.48	1.01	0.88–1.14
4	1.25	1.02–1.54	1.17	0.98–1.40	1.05	0.92–1.20
Most deprived	1.31	1.07–1.62	1.18	0.98–1.43	1.14	1.00–1.31
Unknown	1.96	1.18–3.34	1.48	0.90–2.44	0.89	0.61–1.30
Dukes' stage at diagnosis
A	1.00		1.00		1.00
B	1.97	1.22–3.17	1.38	1.04–1.84	1.67	1.37–2.04
C	1.86	1.17–2.98	1.50	1.14–1.97	2.46	2.04–2.96
D	6.73	4.41–10.27	3.76	2.90–4.88	7.85	6.51–9.47
Unknown	7.32	4.87–11.02	2.08	1.61–2.69	3.64	3.04–4.36
Method of presentation
Elective	1.00		1.00		1.00
Emergency	5.69	4.96–6.53	2.31	2.04–2.64	1.61	1.44–1.80
Unknown	0.79	0.59–1.07	0.88	0.55–1.43	0.86	0.59–1.24

Abbreviations: CI=confidence interval; OR=odds ratio.

^aMutually adjusted for all characteristics listed.

^bOmitted owing to collinearity with unknown surgical treatment.