Table 1.
Characteristics | Without myocardial infarction history | With myocardial infarction history | P value for total | P value for symptomatic | |||
|
Total (n=847) | Symptomatic (n=143) | Total (n=703) | Symptomatic (n=169) |
|
|
|
Risk factors | |||||||
|
Age (years), median (IQR) | 49 (19-65) | 56 (43-69) | 64 (55-74) | 63 (55-74) | <.001 | <.001 |
|
Active smoker (age≥15 years), n/N (%) | 138/716 (19.27) | 23/137 (16.79) | 83/701 (11.84) | 24/168 (14.29) | <.001 | .63 |
|
BMI≥30, n/N (%) | 73/733 (9.96) | 18/136 (13.24) | 92/661 (13.92) | 26/162 (16.05) | .02 | .51 |
|
Hypertension, n (%) | 98 (11.57) | 22 (15.38) | 176 (25.04) | 54 (31.95) | <.001 | <.001 |
|
Diabetes, n (%) | 53 (6.26) | 12 (8.9) | 118 (16.79) | 35 (20.71) | <.001 | <.001 |
|
Heart failure, n (%) | 6 (0.71) | 4 (2.80) | 64 (9.10) | 30 (17.75) | —a | — |
History, n (%) | |||||||
|
Asthma | 23 (2.72) | 6 (4.20) | 17 (2.42) | 6 (3.55) | .75 | — |
|
Rheumatism/polyarthritis | 26 (3.07) | 13 (9.09) | 35 (4.98) | 22 (13.02) | .75 | .77 |
|
Cancer | 23 (2.72) | 6 (4.20) | 33 (4.69) | 8 (4.73) | .04 | — |
|
Hypothyroidism | 30 (3.54) | 13 (9.09) | 16 (2.28) | 6 (3.55) | .17 | — |
|
Stroke/stroke-like | 6 (0.71) | 3 (2.10) | 32 (4.55) | 5 (2.96) | — | — |
|
Renal disease | 4 (0.47) | 2 (1.40) | 21 (2.99) | 7 (4.14) | — | — |
|
Respiratory failure | 7 (0.83) | 0 (0.00) | 18 (2.56) | 8 (4.73) | — | — |
|
Neurologic disease | 8 (0.94) | 1 (0.70) | 13 (1.85) | 7 (4.14) | — | — |
|
Chronic obstructive pulmonary disease | 5 (0.59) | 2 (1.40) | 11 (1.56) | 4 (2.37) | — | — |
|
Immune disease | 5 (0.59) | 1 (0.70) | 7 (1.00) | 2 (1.18) | — | — |
|
Liver disease | 3 (0.35) | 1 (0.70) | 5 (0.71) | 0 (0.00) | — | — |
|
Emphysema | 2 (0.24) | 1 (0.70) | 5 (0.71) | 1 (0.59) | — | — |
|
Oxygen at home | 1 (0.12) | 0 (0.00) | 4 (0.57) | 1 (0.59) | — | — |
|
Other (ie, dyslipidaemia) | 39 (4.60) | 12 (8.39) | 57 (8.11) | 14 (8.28) | <.001 | >.99 |
aNot available because frequencies were insufficient to provide a statistical test value.