Mean (SD) breathing parameters at rest
| Relatives | Controls | |
| Ti (min) | 1.73 (0.38) | 1.69 (0.48) |
| Te (min) | 2.76 (0.62) | 2.39 (0.83) |
| Ti/Ttot | 0.39 (0.42) | 0.44 (0.30) |
| f | 13.72 (3.00) | 15.93 (4.66) |
| V˙e(l/min) | 10.27 (2.14) | 11.90 (2.35) |
| Petco 2 (mmHg) | 35.16 (4.39) | 37.03 (4.10) |
Ti = inspiratory time; f = breathing frequency; Te = expiratory time; V˙e = minute ventilation; Petco 2 = end tidal CO2pressure.