Table 5. CFRs for deaths within 30 and 90 days of oesophagectomy and gastrectomy by IMD quintile (from least to most deprived) for younger and older patients.

				CFRs by IMD quintile (from least to most deprived)
Operation outcome/age in years	No. of patients	No. of deaths	CFR per 100	5	4	3	2	1	IMD trend	95% CI	Comparison of slopes
Oesophagectomy
Deaths with 30 days
<65	2961	148	5.0	4.2	4.6	4.2	5.1	6.0	0.099	−0.017–0.217
65+	3189	362	11.3	9.9	10.4	8.6	13.8	13.0	0.097	0.025–0.170	P=1.0 NS
Deaths with 90 days
<65	2961	262	8.8	7.7	7.4	7.2	9.3	11.0	0.114	0.027–0.200
65+	3189	559	17.5	15.9	15.1	15.5	20.6	19.2	0.079	0.023–0.135	P=0.9 NS
Gastrectomy
Deaths with 30 days
<65	2063	109	5.3	4.5	4.8	4.9	5.6	5.6	0.046	−0.094–0.186
65+	2769	322	11.6	11.3	12.6	11.5	9.9	12.6	0.021	−0.055–0.097	P=0.7 NS
Deaths with 90 days
<65	2063	202	9.8	8.0	7.8	10.7	9.2	10.8	0.069	−0.033–0.017
65+	2769	530	19.1	20.8	17.9	17.6	17.3	21.3	0.028	−0.028–0.085	P=0.5 NS

Rates are standardised for age and sex.