Table 2.

Annual crude and standardized mortality rates of patients with untreated unruptured abdominal aortic aneurysm from 2009 to 2018.

	Observed Deaths	Person-Year	Crude Mortality per 100 Person-Years	Standardised Mortality Ratio (95% CI)
Total
2009	611	2874.4	21.26	5.91 (5.45–6.40)
2010	906	5946.9	15.23	4.28 (4.01–4.57)
2011	1189	8968.3	13.26	3.77 (3.56–3.99)
2012	1391	12,280.2	11.33	3.13 (2.97–3.30)
2013	1562	15,079.2	10.36	2.92 (2.77–3.07)
2014	1722	17,786.8	9.68	2.73 (2.60–2.86)
2015	2007	20,450.1	9.81	2.68 (2.57–2.80)
2016	2237	23,554.7	9.50	2.58 (2.47–2.69)
2017	2367	26,903.5	8.80	2.36 (2.26–2.45)
2018	2729	30,779.1	8.87	2.32 (2.23–2.40)
Men
2009	332	1529.6	21.71	5.34 (4.78–5.94)
2010	538	3150.7	17.08	4.24 (3.89–4.61)
2011	725	4758.3	15.24	3.84 (3.57–4.13)
2012	821	6469.1	12.69	3.14 (2.93–3.37)
2013	902	7983.7	11.30	2.86 (2.68–3.06)
2014	982	9462.5	10.38	2.66 (2.50–2.83)
2015	1110	10,977.3	10.11	2.56 (2.41–2.72)
2016	1297	12,813.0	10.12	2.57 (2.43–2.72)
2017	1378	14,802.6	9.31	2.38 (2.26–2.51)
2018	1610	17,220.4	9.35	2.35 (2.23–2.46)
Women
2009	279	1344.8	20.75	6.79 (6.02–7.63)
2010	368	2796.2	13.16	4.34 (3.91–4.81)
2011	464	4210.0	11.02	3.65 (3.33–4.00)
2012	570	5811.1	9.81	3.11 (2.86–3.38)
2013	660	7095.6	9.30	2.99 (2.77–3.23)
2014	740	8324.4	8.89	2.83 (2.63–3.04)
2015	897	9472.8	9.47	2.85 (2.67–3.05)
2016	940	10,741.7	8.75	2.59 (2.43–2.76)
2017	989	12,100.9	8.17	2.32 (2.18–2.47)
2018	1119	13,558.7	8.25	2.27 (2.14–2.41)