Table 2.
Means and standard deviations of sleep macroarchitecture by diagnoses and sex.
| Sleep variables | HC-M (n=20) |
HC-F (n=32) |
MDD-M (n=20) |
MDD-F (n=32) |
|---|---|---|---|---|
| Total sleep time, min. | 449.2±35.3 | 458.4±42.0 | 445.5±44.5 | 465.2±41.7 |
| Sleep latency, min. | 9.5±9.9 | 13.7±10.7 | 14.6±11.2 | 18.1±2 0.2 |
| REM latency, min. | 111.1±57.1 | 84.7±38.6 | 69.6±23.7 | 107.6±50.3 |
| % Stage 1* | 8.4±5.0 | 4.8±3.0 | 10.6±7.2 | 7.4±5.0 |
| % Stage 2* | 47.0±6.4 | 52.6±5.9 | 45.4±8.2 | 50.0±8.5 |
| % SW (stages 3+4)* | 20.8±8.1 | 18.0±7.7 | 17.9±10.5 | 18.3±8.7 |
| % REM* | 18.3±3.9 | 21.2±4.0 | 22.3±4.9 | 20.6±5.1 |
| % awake and movement* | 5.1±4.7 | 3.1±1.6 | 3.6±1.6 | 3.4±2.2 |
| Sleep efficiency | 93.0±4.9 | 93.8±2.4 | 93.2±2.5 | 93.0±4.5 |
| Number of arousals | 23.4±7.7 | 19.1±8.9 | 20.4±6.1 | 19.7±8.4 |
*Relative to total sleep time. Minutes of stages 3+4.
HC, healthy control; MDD, major depressive disorder; M, males; F, females; REM, rapid eye movement sleep; NREM, non-rapid eye movement sleep; SW, slow wave sleep.