Multivariable predictors of mortality on Cox proportional hazards analysis
| Variables | HR (95% CI) | p Value |
| Multivariable analysis | ||
| BNP (per 100 pg/ml) | 1.71 (1.07 to 2.73) | 0.02 |
| Creatinine (per 10 μm/l) | 0.70 (0.50 to 0.97) | 0.03 |
| 6 min walk test distance (per 10 m) | 0.93 (0.87 to 0.99) | 0.02 |
| Down syndrome | 2.11 (0.47 to 9.39) | 0.33 |
BNP, B-type natriuretic peptide, WHO, World Health Organization functional class.
Significant variables are printed in bold.