Differences in the incidence of non-parametric variables between the two groups (positive and negative metaraminol test)
| Negative (n=30) | Positive (n=13) | p Value | |
|---|---|---|---|
| Male sex (n=39) | 28 | 11 | NS |
| Hypertension (n=20) | 12 | 8 | NS |
| History of MI (n=19) | 10 | 9 | NS |
| Use of β blockers (n=31) | 22 | 9 | NS |
| Positive ET (n=25) | 20 | 5 | NS |
| Normal coronary vessels | 6 | 1 | NS |
| One vessel disease | 8 | 2 | NS |
| Two vessel disease | 11 | 6 | NS |
| Three vessel disease | 5 | 4 | NS |
| Normal LV movement (n=19) | 18 | 1 | 0.0001 |
| Hypokinesia (n=12) | 10 | 2 | |
| Akinesia-dyskinesia (n=12) | 2 | 10 |
ET, exercise test; LV, left ventricular; MI, myocardial infarction.