Table 1

Effect of achieving venous thromboembolism (VTE) risk assessment quality target on patients by whether they were coded for a surgical room procedure or not during the index admission, examining those patients admitted for more than 3 days, and those admitted for less than 4 days (excluding day cases)

		95% CI
	Relative risk	Lower	Upper	p Value	N events
Non-surgical admissions >3 days n=2 590 547
VTE deaths postdischarge	0.963	0.814	1.138	0.653	1135
Primary VTE deaths postdischarge	0.886	0.714	1.099	0.269	669
VTE inhospital deaths	0.900	0.813	0.997	0.044	3302
Primary VTE inhospital deaths	0.858	0.724	1.018	0.079	1065
All VTE deaths	0.916	0.838	1.002	0.056	4437
All primary VTE deaths	0.872	0.760	1.002	0.053	1734
Non-surgical admissions <4 days n=10 719 502
VTE deaths postdischarge	0.743	0.602	0.918	0.006	761
Primary VTE deaths postdischarge	0.617	0.472	0.808	0.001	450
Surgical admissions >3 days n=1 550 794
VTE deaths postdischarge	0.816	0.646	1.031	0.088	516
Primary VTE deaths postdischarge	0.624	0.440	0.884	0.008	226
VTE inhospital deaths	0.970	0.819	1.149	0.723	1032
Primary VTE inhospital deaths	0.919	0.670	1.259	0.596	253
All VTE deaths	0.922	0.799	1.063	0.260	1548
All primary VTE deaths	0.778	0.611	0.992	0.043	479
Surgical admissions <4 days n=2 851 838
VTE deaths postdischarge	0.730	0.459	1.162	0.184	113
Primary VTE deaths postdischarge	0.568	0.303	1.067	0.078	62