A comparison between the imaged and non-imaged patients
| Characteristics | Imaged patients (n1 = 27) | Non-imaged patients (n2 = 9) | Significance |
|---|---|---|---|
| Mean (SD) age (years) | 63.4 (9.3) | 64.4 (11.4) | NS |
| Male sex | 22/27 (81.5%) | 7/9 (77.8%) | NS |
| Mean (SD) stenosed coronary arteries* | 2.3 (0.8) | 2.7 (0.7) | NS |
| Mean (SD) LV score† | 13.9 (2.2) | 12.7 (1.9) | NS |
| Mean (SD) LVEDP (mm Hg)‡ | 13.5 (8) | 13.4 (7) | NS |
| Smoking§ | 23/27 (85.2%) | 7/9 (77.8%) | NS |
| Hypercholesterolaemia¶ | 26/27 (96.3%) | 7/9 (77.8%) | NS |
| Diabetes** | 3/27 (11.1%) | 1/9 (11.1%) | NS |
| Hypertension†† | 4/27 (14.8%) | 3/9 (33.3%) | NS |
NS, not significant (significance is when p < 0.05); *Number of epicardial coronary arteries with stenosis > 70%; †LV score, the sum of scores given for wall motion to the five segments of the left ventricle on the RAO projection of the LV angiogram; ‡LVEDP, left ventricular end diastolic pressure, measured through an intraventricular pigtail catheter at the time of the cardiac catheterisation; §Smoking, patients who are current smokers or exsmokers; ¶Hypercholesterolaemia, defined as total serum cholesterol > 5.2 mmol/l; **Diabetes, both insulin dependent and non-insulin dependent diabetes mellitus according to World Health Organisation criteria irrespective of the treatment modality; ††Hypertension, either blood pressure > 140/90 mm Hg at the time of catheterisation or in the past, whether on treatment.