TABLE 1

Participant anthropometric and sleep characteristics

PlaceboZopiclone
Participants1614
Sex
 Male1312
 Female32
Age years46±1350±8
BMI kg·m−229±428±4
Mean AHI events·h−121±1023±12
AHI range events·h−16–386–53
Arousal threshold cmH2O−16±5−16±7

Data are presented as n or mean±sd, unless otherwise stated. Group anthropometric and baseline obstructive sleep apnoea severity data acquired from the baseline and physiology (for respiratory arousal threshold data only) overnight sleep studies. BMI: body mass index; AHI: apnoea–hypopnoea index.