Table 1

Baseline characteristics of the study population

Characteristics	Men			Women
Characteristics	No MI	Recognised MI	Unrecognised MI	No MI	Recognised MI	Unrecognised MI
Number at risk	2173	258	150	3453	94	177
Age, years	67.5 (8.0)	69.2 (7.6)^†	69.9 (8.3)^†	69.0 (9.1)	74.7 (9.1)^†	73.3 (9.3)^†
Systolic blood pressure, mm Hg	138.9 (22.0)	135.4 (20.3)^†	143.4 (20.7)^†,^‡	139.4 (22.6)	139.3 (27.3)	146.5 (19.8)^†,^‡
Diastolic blood pressure, mm Hg	75.1 (11.6)	71.5 (9.9)^†	76.0 (12.6)^‡	73.3 (11.4)	70.4 (15.3)^†	75.2 (11.3)^†,^‡
Body mass index, kg/m²	25.6 (2.9)	26.1 (3.0)^†	26.0 (3.6)	25.6 (4.0)	26.7 (3.9)	27.8 (5.2)^†,^‡
Diabetes mellitus	8.7	15.9^†	16.7^†	9.9	14.9	12.4
Smoking
Current	29.9	23.6^†	40.7^†,^‡	18.5	16.0	19.8
Former	61.5	71.3^†	51.3^†,^‡	27.9	29.8	26.0
Never	8.6	5.0^†	8.0^‡	53.6	54.3	54.2
Total cholesterol, mmol/l	6.3 (1.2)	6.5 (1.1)^†	6.3 (1.2)	6.8 (1.2)	6.7 (1.3)	6.9 (1.3)
HDL-cholesterol, mmol/l	1.2 (0.3)	1.1 (0.3)^†	1.2 (0.3)^‡	1.5 (0.4)	1.3 (0.4)^†	1.4 (0.3)^†
Use of antihypertensive drugs^*	21.8	65.9^†	22.7^‡	30.5	77.7^†	30.5^‡
ACE-inhibitors	5.4	14.7^†	6.0^‡	3.7	13.8^†	5.1^‡
β Blockers	11.4	43.8^†	8.0^‡	13.2	46.8^†	7.3^†,^‡
Diuretics	6.8	15.9^†	6.7^‡	16.1	25.5^†	16.4
Other	5.5	21.3^†	6.7^‡	6.7	27.7^†	11.9^†,^‡
Q-wave MI on ECG	NA	53.9	100	NA	40.4	100

Values are percentages or means (SD).
↵* Defined as the use of ACE inhibitors, β blockers, diuretics, antiadrenergic agents, or calcium channel blockers.
↵† p <0.05 when compared with no MI.
↵‡ p <0.05 when compared with recognised MI.
ACE, angiotensin converting enzyme, HDL, high-density lipoprotein; MI, myocardial infarction; NA, not applicable.