Table 5 Number of potential sudden arrhythmic death syndrome cases* over a 1‐year period and calculated rates in residents aged 4–64 years for all of England.

Age group (years)	Male		Female		Total
	Rate per 100 00 pa	Number of deaths pa	Rate per 100 000 pa	Number of deaths pa	Rate per 100 000 pa	Number of deaths pa
4–15	0.14	5	0.14	5	0.14	11
16–24	0.95	26	0.46	12	0.71	38
25–34	1.99	79	0.69	26	1.36	105
35–44	2.78	100	0.87	31	1.84	131
45–54	3.44	112	1.29	42	2.36	154
55–64	2.93	71	1.40	35	2.15	105
Total	1.97	393	0.78	151	1.38	544

ICD 9, International Classification of Diseases—ninth edition; pa, per annum.

*Unascertained causes of death—ICD9 codes 798.1, 799.9, 427.8/9, 428.9 and 429.9.