Cognitive function test results
| NHV (n=21) | HF (n=81) | HF-CSR (n=23) | |
| Premorbid IQ | 113.5 (1.9) | 107 (1.4) | 110 (2.4) |
| Reitan test (s) | 62.4 (10.3) | 95.1 (8) | 113.7 (24.7) |
| PASAT, 2 second (n correct) | 32.5 (3.3) | 27 (1.3) | 25.4 (2.5) |
| PASAT, 4 second (n correct) | 51.1 (2) | 49 (1.1) | 45.9 (2.1) |
| PASAT (total n incorrect) | 35.1 (4.5) | 45.3 (2.2) | 48.1 (4) |
| Reaction time (s) | 0.6 (0.05) | 0.86 (0.03)2-150 | 1 (0.07)2-150 |
| Steer Clear (number hit) | 33 (4.6) | 66.7 (6.2)2-150 | 103.2 (17.5)2-150 |
All results are mean (SEM).
↵2-150 p ⩽ 0.005 v NHV.
HF, heart failure without Cheyne-Stokes respiration; HF-CSR, heart failure with Cheyne-Stokes respiration; NHV, normal healthy volunteers; PASAT, paced auditory serial addition test.