Table 1 Baseline characteristics of the overall population and of diabetics compared with non-diabetics
|  | Overall population (n = 413) | Diabetics (n = 210) | Non-diabetics (n = 203) | p Value* |
|---|---|---|---|---|
Clinical characteristics | ||||
Age (years; mean [SD]) | 61 (11) | 60 (10) | 62 (11) | 0.06 |
Male gender (%) | 262 (63) | 133 (63) | 129 (63) | 0.95 |
BMI (kg/m²; mean [SD]) | 27 (2) | 28 (4) | 26 (3) | <0.0001 |
Mean heart rate (bpm; mean [SD]) | 61 (10) | 62 (10) | 61 (10) | 0.31 |
Follow-up (months; mean [SD]) | 20 (6) | 20 (8) | 21 (3) | 0.16 |
Risk factors | ||||
N. of risk factors (mean [SD]) | 2.3 (1.2) | 2.3 (1.2) | 2.2 (1.1) | 0.38 |
Hypertension | 272 (66) | 144 (69) | 128 (63) | 0.28 |
Hypercholesterolaemia (%) | 200 (48) | 97 (46) | 103 (51) | 0.41 |
Obesity (BMI ≥30 kg/m²) (%) | 117 (28) | 78 (37) | 39 (19) | 0.0001 |
Current smoking (%) | 144 (35) | 63 (30) | 81 (40) | 0.04 |
Family history of CAD (%) | 200 (48) | 105 (50) | 95 (47) | 0.58 |
Symptoms | ||||
Asymptomatic (%) | 128 (31) | 72 (34) | 56 (28) | 0.17 |
Typical angina pectoris (%) | 49 (12) | 26 (12) | 23 (11) | 0.86 |
Atypical angina pectoris (%) | 152 (37) | 75 (36) | 77 (38) | 0.71 |
Dyspnoea (%) | 84 (20) | 37 (18) | 47 (23) | 0.20 |
Pre-test likelihood of CAD# | ||||
Low (%) | 61 (15) | 19 (9) | 42 (21) | 0.001 |
Intermediate (%) | 302 (73) | 148 (71) | 154 (76) | 0.26 |
High (%) | 50 (12) | 43 (20) | 7 (3) | < 0.0001 |