TABLE 2

S3-NIV questionnaire score and subscores according to disease category

S3-NIV questionnaire total scoreRespiratory symptoms subscoreSleep & NIV-related side effects subscore
All subjects6.71±1.826.28±2.427.07±1.97
COPD6.09±1.585.01±2.216.99±1.81
OHS6.72±1.926.37±2.316.99±2.02
CBD7.09±1.787.09±2.297.08±2.14
Neuromuscular disorders6.50±1.905.80±2.587.12±1.75
Restrictive disorders7.22±1.616.80±2.137.57±1.84

Data are presented as mean±sd. NIV: noninvasive ventilation; COPD: chronic obstructive pulmonary disease; OHS: obesity hypoventilation syndrome; CBD: central breathing disturbances during sleep.