OSA CPAP users | p-value | ||
Without RES# | With RES¶ | ||
Age yrs | 60±11 | 54±12 | 0.003 |
Male/female | 80/20 | 70/30 | ns |
BMI kg·m−2 | 32±6 | 31±5 | ns |
ESS scores at diagnosis | 12±5 | 16±5 | <0.001 |
Apnoeas/hypopnoeas·h−1 of sleep | 52±22 | 40±17 | 0.004 |
Estimated sleep duration h·night−1 | 7.6±1.5 | 7.4±2.3 | ns |
CPAP use h·night−1 | 6.5±2.9 | 6.1±1.3 | ns |
Mean pressure level cmH2O | 10±2 | 9±2 | ns |
Side-effects rate % | 52 | 57 | ns |
Mouth dryness | 32 | 33 | ns |
Noise | 8 | 3 | ns |
Nasal intolerance | 14 | 23 | ns |
Hypertension % | 51 | 50 | ns |
Cardiovascular history % | 20 | 13 | ns |
Type I diabetes % | 3 | 3 | ns |
Type II diabetes % | 12 | 13 | ns |
After having discarded confounding factors (depression, restless legs syndrome, medications and ineffective CPAP), the final comparison between OSA with or without RES was performed in a group of 407 subjects. Data are presented as mean±sd or n, unless otherwise stated. BMI: body mass index; ESS: Epworth Sleepiness Scale; ns: nonsignificant. #: n = 377; ¶: n = 30.