Table 1 Characteristics of the 85 patients with definitive exercise tolerance test (ETT) result who had both B‐type natriuretic peptide (BNP) sample results and no evidence or history of ischaemic heart disease or cardiac failure.
| ETT normal | ETT abnormal | |
|---|---|---|
| Age (years) | 54 (11) | 60(7)* |
| Sex (male/female) | 53/17 | 10/5 |
| Smoking (no/yes) | 48/22 | 14/1* |
| Hypertension (no/yes) | 41/29 | 6/9 |
| Hyperlipidaemia (no/yes) | 56/14 | 9/6 |
| Haemoglobin A1c (%) | 7.6 (1.4) | 7.8 (1.9) |
| Cholesterol (mmol/l) | 5.3 (1.6) | 5.5 (1.3) |
| SBP (mm Hg) | 142 (17) | 151 (21) |
| DBP (mm Hg) | 82 (12) | 83 (11) |
| BMI (kg/m2) | 30(5.7) | 30 (6.3) |
| BNP (pg/ml) | 24.4 (15.7) | 58.2 (46.3)*** |
Data are described as patient number (%), median (interquartile range) for BNP or mean (SD).
*p⩽0.05; ***p<0.001 between normal and abnormal test.
BMI, body mass index; DBP, diastolic blood pressure; SBP, systolic blood pressure.