Table 3.
Means and standard deviations of slow-wave activity power and dissipation, and non-REM period characteristics by diagnosis and sex.
| HC-M (n=20) |
HC-F (n=32) |
MDD-M (n=20) |
MDD-F (n=32) |
|
|---|---|---|---|---|
| NREM 1 | ||||
| Latency* | 8.9±6.9 | 9.5±5.8 | 12.2±13.3 | 9.5±5.6 |
| Duration* | 92.8±36.4 | 81.9±36.8 | 65.8±19.7 | 93.5±40.3 |
| Power° | 955.4±242.0 | 738.0±216.7 | 759.7±270.1 | 781.3±227.7 |
| Decay° | 310.2±207.6 | 224.4±179.3 | 120.3±142.8 | 202.5±153.7 |
| NREM 2 | ||||
| Latency* | 125.1±50.7 | 105.6±41.4 | 96.7±28.9 | 121.7±46.3 |
| Duration* | 82.7±27.1 | 76.8±24.7 | 71.7±14.9 | 74.6±25.3 |
| Power° | 645.1±170.5 | 513.5±134.2 | 639.4±233.0 | 578.7±246.1 |
| Decay° | 100.7±178.2 | 73.7±133.8 | 196.1±146.8 | 121.9±201.6 |
| NREM 3 | ||||
| Latency* | 241.6±55.8 | 206.7±46.3 | 192.4±36.0 | 226.6±54.9 |
| Duration* | 67.7±30.4 | 71.7±14.4 | 59.7±20.8 | 71.0±19.1 |
| Power° | 544.4±157.0 | 439.7±111.9 | 443.3±166.0 | 456.8±140.1 |
| Decay° | 56.1±135.2 | 42.7±114.9 | 6.2±130.7 | 39.0±132.4 |
| NREM 4 | ||||
| Latency* | 340.8±72.7 | 307.7±51.2 | 288.7±38.8 | 329.5±61.5 |
| Duration* | 55.1±22.3 | 63.0±15.1 | 53.4±14.0 | 56.3±15.6 |
| Power° | 488.3±113.1 | 397.0±102.4 | 449.6±159.2 | 417.7±113.6 |
*In minutes;
°in μV2.
HC, healthy control; MDD, major depressive disorder; M, males; F, females; NREM, non-rapid eye movement sleep.