Table 1.

Characteristics of patients according to delay in seeking medical help for cardiac event

Case No	Age (years)	Sex	Acute mycardial infarction		Receiving treatment for CHD	Social group*
			Confirmed	Previous
Non-delayers (<4 h)
1	47	M	Yes	No	No	IV
2	65	F	Yes	Yes	Yes	V
3	79	F	Yes	No	No	V
4	55	M	Yes	No	No	IIIN
5	59	M	Yes	No	No	IIIN
6	52	M	Yes	No	No	II
7	64	M	Yes	No	No	IIIM
8	71	M	No	No	Yes	IV
9	50	M	Yes	No	No	IIIN
10	53	M	Yes	No	No	IIIM
11	75	M	Yes	Yes	Yes	IV
12	72	F	Yes	No	No	IV
13	52	F	Yes	No	No	IV
14	60	M	Yes	Yes	No	IV
15	59	M	Yes	Yes	Yes	IIIM
16	53	M	Yes	No	No	II
17	76	M	Yes	No	No	IIIN
18	64	M	Yes	No	No	IIIM
19	65	M	Yes	Yes	Yes	II
20	57	F	Yes	No	No	IV
21	60	M	Yes	No	No	IIIN
Delayers (4-12 h)
22	53	F	No	No	No	IIIN
23	69	M	Yes	No	No	IV
24	74	F	Yes	No	No	IV
25	60	F	Yes	Yes	Yes	IV
26	71	F	Yes	No	Yes	IV
27	60	M	Yes	No	No	IIIN
28	49	M	Yes	No	No	IIIN
29	82	M	Yes	No	No	IIIM
30	48	M	Yes	No	No	II
31	55	M	Yes	No	No	IV
32	62	F	Yes	No	No	IV
33	80	M	Yes	Yes	Yes	II
Extended delayers (>12 h)
34	71	F	Yes	No	No	IV
35	80	M	Yes	Yes	Yes	IIIM
36	73	M	No	No	Yes	IIIM
37	65	F	Yes	No	No	IIIN
38	56	M	Yes	No	No	IIIM
39	51	M	Yes	No	No	II
40	57	F	Yes	Yes	Yes	II
41	69	F	Yes	No	No	IV
42	75	F	Yes	No	Yes	II
43	63	M	Yes	No	No	II

CHD=coronary heart disease.  

^*Registrar general’s classification.