Males | Females | |||||
Controls | Apnoeic | p-value | Controls | Apnoeic | p-value | |
Subjects n | 19 | 22 | 20 | 20 | ||
Age yrs | 52.38±6.23 | 54.25±6.56 | 0.36 | 54.59±5.98 | 57.64±5.81 | 0.12 |
BMI kg·m−2 | 26.60±2.65 | 27.22±2.54 | 0.47 | 27.85±4.24 | 30.57±3.06 | 0.03 |
Height cm | 176.79±8.30 | 177.04±6.34 | 0.91 | 164.05±5.60 | 163.63±6.36 | 0.83 |
Waist cm | 96.39±1.67 | 100.00±1.48 | 0.11 | 94.45±1.83 | 97.7±1.83 | 0.23 |
Neck cm | 38.63±0.57 | 39.51±0.44 | 0.22 | 34.92±0.47 | 35.77±0.48 | 0.23 |
WHR | 0.95±0.05 | 0.97±0.04 | 0.06 | 0.86±0.13 | 0.88±0.13 | 0.26 |
Sleep latency min | 17.28±2.83 | 14.24±1.58 | 0.36 | 14.87±2.32 | 21.49±2.32 | 0.06 |
WASO min | 66.75±8.23 | 112.97±10.28 | <0.01 | 54.71±10.93 | 91.31±10.93 | 0.03 |
TWT min | 84.02±8.81 | 127.20±10.63 | <0.01 | 69.58±11.46 | 112.80±11.46 | 0.01 |
Sleep time TST % | 82.56±1.82 | 73.59±2.19 | <0.01 | 85.28±8.19 | 76.83±11.23 | 0.01 |
N1 % | 14.11±0.81 | 22.42±1.88 | <0.01 | 11.39±1.23 | 13.83±1.23 | 0.18 |
N2 % | 64.71±2.16 | 56.28±2.82 | 0.03 | 58.51±2.14 | 55.32±2.14 | 0.32 |
SWS % | 6.14±1.62 | 6.83±1.56 | 0.77 | 17.18±2.22 | 18.57±2.22 | 0.67 |
REM % | 15.05±1.10 | 14.47±1.61 | 0.78 | 12.47±6.42 | 12.95±6.48 | 0.82 |
REM latency min | 105.12±13.26 | 109.28±14.63 | 0.84 | 125.46±16.69 | 141.44±16.69 | 0.52 |
AHI | 3.03±0.44 | 42.12±4.87 | <0.01 | 1.6±0.33 | 32.09±3.95 | <0.01 |
Minimum Sa,O2 | 89.00±1.12 | 81.18±1.81 | <0.01 | 91.2±0.82 | 83.05±0.89 | <0.01 |
Data are presented as mean±se, except for age, BMI and height (mean±sd), unless otherwise stated. Females’ sleep data, waist–hip ratio (WHR), and waist and neck circumference data are reported as mean±se after controlling for body mass index (BMI). WASO: wake time after sleep onset; TWT: total wake time; TST: total sleep time; N1: stage 1 nonrapid eye movement (NREM) sleep; N2: stage 2 NREM sleep; SWS: slow wave sleep; REM: rapid eye movement; AHI: apnoea/hyponoea index; Sa,O2: arterial oxygen saturation.