Table 3 Frequencies of cough syncope/pre-syncope in four groups of subjects classified by the presence of both-side JVR and the levels of plasma ET-1
Both-side JVR | Plasma ET-1, pg/ml | Cough syncope/pre-syncope | pvalue | |
|---|---|---|---|---|
- | + | |||
No | ≦ 3.43 | 38 (92.7%) | 3 (7.3%) | <0.001 |
Yes | ≦ 3.43 | 8 (61.5%) | 5 (38.5%) | |
No | > 3.43 | 5 (55.6%) | 4 (44.4%) | |
Yes | > 3.43 | 0 | 5 (100%) | |