Table 1 Characteristics of patients with unexplained chest/epigastric pain (UCEP) and matched population controls.
UCEP patients* (N = 386) | Population controls** (N = 3,793) | |
|---|---|---|
Age, n (%) | ||
≤ 39 years | 155 (40) | 1,553 (41) |
40–56 years | 114 (30) | 1,100 (29) |
≥ 57 years | 117 (30) | 1,140 (30) |
Mean age (years) | 46.4 | 46.1 |
Median age (years) | 44 | 44 |
Gender, n (%) | ||
Female | 222 (58) | 2,195 (58) |
Male | 164 (42) | 1,598 (42) |
Comorbidity level, n (%)† | ||
No comorbidity | 337 (87) | 3,473 (92) |
Comorbidity level 1–2 | 45 (12) | 286 (7) |
Comorbidity level > 2 | 4 (1) | 34 (1) |
Discharge diagnoses, n (%) | ||
Alcohol-related diseases | 29 (8) | 79 (2) |
Smoking-related diseases | 19 (5) | 133 (4) |
Patients who developed ischemic heart disease, n (%) | 39 (11) | 241 (6) |
10-year risk of ischemic heart disease, % | 11 | 6 |
Deaths, total, n (%) | 62 (16) | 508 (13) |
Death from ischemic heart disease# | 8 (2) | 76 (2) |
Death from stroke | 4 (1) | 34 (1) |
Death from arteriosclerosis (not ischemic heart disease, not stroke) | 4 (1) | 51 (1) |
Death from pneumonia | 12 (3) | 41 (1) |
Death from lung cancer | 5 (1) | 27 (1) |
Death from alcohol dependence | 3 (1) | 5 (0.1) |
Death from chronic obstructive pulmonary disease | 3 (1) | 38 (1) |
Death from other causes | 21 (5) | 217 (6) |
10-year mortality, % | 16 | 13 |