Multivariate Cox analysis of the predictive factors of poor late functional results after good immediate results of PMC
| Variables and subgroups | HR (95% CI) | p Value |
|---|---|---|
| NYHA functional class | 0.02 | |
| Per one class increase | 1.97 (1.12 to 3.45) | |
| Rhythm | 0.0002 | |
| Sinus | 1 | |
| Atrial fibrillation | 2.32 (1.40 to 3.60) | |
| Mean gradient after PMC | 0.004 | |
| Per 1 mm Hg increase | 1.19 (1.06 to 1.35) |
NYHA,New York Heart Association; PMC,percutaneous mitral commissurotomy.