| Mean (SD) Whole sample (N = 209) | Mean (SD) Normative (N = 30) | Mean (SD) Insomnia (N = 84) | Mean (SD) Depression (N = 95) | Median (P25-P75) Normative (N = 30) | Median (P25-P75) Insomnia (N = 84) | Median (P25-P75) Depression (N = 95) | P-value |
---|---|---|---|---|---|---|---|---|
% REM | (p < 0.001) | (p < 0.001) | (p < 0.001) | (p < 0.001) |  |  |  |  |
 1st third | 6.97 ± 6.18 | 10.07 ± 5.23 | 6.52 ± 6.06 | 6.29 ± 6.34 | 10.14 (7.84–14.42) | 5.81 (0.00–9.70) | 5.76 (0.00–9.73) | <0.001a,b |
 2nd third | 17.62 ± 9.57 | 20.68 ± 10.02 | 17.37 ± 9.83 | 16.87 ± 9.11 | 19.67 (14.16–27.14) | 17.80 (10.34–22.91) | 17.26 (11.46–22.04) | 0.242 |
 3rd third | 20.62 ± 10.04 | 26.57 ± 8.32 | 20.30 ± 11.02 | 19.14 ± 9.02 | 27.17 (22.54–31.59) | 19.69 (12.20–27.92) | 19.20 (13.69–25.62) | 0.001a,b |
% Stage1 | (p = 0.003) | (p < 0.001) | (p = 0.037) | (p = 0.172) |  |  |  |  |
 1st third | 6.10 ± 3.98 | 6.02 ± 3.33 | 6.29 ± 4.40 | 5.95 ± 3.81 | 5.07 (3.85–7.41) | 5.78 (2.61–9.05) | 6.00 (2.90–7.78) | 0.971 |
 2nd third | 5.76 ± 5.14 | 5.45 ± 2.92 | 5.47 ± 4.17 | 6.11 ± 6.34 | 4.90(3.10–7.17) | 4.52 (2.26–8.55) | 5.07 (2.89–7.43) | 0.745 |
 3rd third | 7.25 ± 7.19 | 7.91 ± 3.94 | 6.79 ± 4.43 | 7.45 ± 9.58 | 6.79 (4.80–10.09) | 5.42 (3.81–8.89) | 5.41 (3.68–9.20) | 0.169 |
% Stage2 | (p < 0.001) | (p < 0.001) | (p < 0.001) | (p < 0.001) |  |  |  |  |
 1st third | 39.04 ± 15.96 | 47.96 ± 10.26 | 38.99 ± 16.59 | 36.26 ± 15.97 | 50.32 (40.52–53.80) | 39.33 (29.70–51.08) | 38.94 (25.61–47.69) | 0.001a,b |
 2nd third | 53.13 ± 15.33 | 61.00 ± 11.03 | 52.60 ± 13.76 | 51.12 ± 17.06 | 62.70 (53.86–70.07) | 52.79 (47.07–62.95) | 55.27 (42.16–63.73) | 0.006a,b |
 3rd third | 43.48 ± 13.81 | 50.11 ± 9.72 | 40.57 ± 13.38 | 43.96 ± 14.60 | 49.87 (43.58–56.77) | 42.11 (32.52–50.89) | 45.38 (34.56–54.61) | 0.003a |
% SWS | (<0.001) | (<0.001) | (<0.001) | (<0.001) | Â | Â | Â | Â |
 1st third | 9.96 ± 10.41 | 20.53 ± 11.34 | 7.84 ± 8.90 | 8.50 ± 9.40 | 19.27 (10.61–29.14) | 3.76 (0.26–13.21) | 4.67 (0.62–15.36) | <0.001a,b |
 2nd third | 7.82 ± 9.97 | 7.24 ± 7.89 | 7.94 ± 10.92 | 7.89 ± 9.77 | 3.80 (0.93–10.31) | 2.03 (0.00–12.52) | 3.79 (0.20–12.04) | 0.695 |
 3rd third | 2.22 ± 4.61 | 2.37 ± 4.68 | 1.98 ± 4.60 | 2.39 ± 4.65 | 0.52 (0.00–1.92) | 0 (0.00–1.75) | 0.29 (0.00–2.75) | 0.294 |
% WASO | (p < 0.001) | (p < 0.001) | (p < 0.001) | (p < 0.001) |  |  |  |  |
 1st third | 37.35 ± 21.33 | 15.41 ± 7.36 | 39.11 ± 19.65 | 42.94 ± 21.48 | 15.63 (10.09–19.07) | 36.59 (27.74–50.01) | 38.27 (26.94–55.45) | <0.001a,b |
 2nd third | 15.22 ± 18.32 | 5.63 ± 4.65 | 15.51 ± 16.80 | 17.98 ± 21.21 | 4.68 (2.81–8.10) | 12.11 (4.58–19.59) | 9.20 (5.42–23.62) | <0.001a,b |
 3rd third | 26.10 ± 18.39 | 12.27 ± 9.43 | 29.96 ± 18.57 | 27.05 ± 18.48 | 8.92 (5.24–15.51) | 27.07 (18.18–41.55) | 23.78 (13.95–37.67) | <0.001a,b |
 |  |  |  |  |  |  |  | Kruskal-Wallis Test |