Variables used to calculate REVEAL 2.0 risk score
| World Health Organization group 1 subgroup |
| Presence of renal insufficiency |
| Male age greater than 60 |
| New York Heart Association/World Health Organization functional class |
| Systolic blood pressure |
| Heart rate |
| Six-minute walk test distance |
| Level of B-type natriuretic peptide |
| Presence of pericardial effusion |
| Diffusing capacity of the lung for carbon monoxide on pulmonary function test |
| Elevated atrial pressures |
| Any hospitalization within 6 months |
| Pulmonary vascular resistance |
REVEAL = Registry to Evaluate Early and Long-Term PAH Disease Management
Information from reference 13.