Research Article
Impact of Alexithymia on the Lipid Profile in Major Depressed Individuals
Table 1
Polysomnographic data (
).
| | Whole sample () | Depression without dyslipidaemia () | Depression with dyslipidaemia () | value |
| | Sleep latency (min) | 59.5 (35.0–99.0) | 61.5 (38.5–94.5) | 56.0 (33.0–101.0) | 0.468 | | Sleep efficiency (%) | 75.5 (65.0–83.0) | 75.5 (66.0–83.0) | 75.5 (65.0–83.0) | 0.999 | | Sleep period time (min) | 440.5 (410.0–466.0) | 438.5 (410.0–464.5) | 442.5 (408.0–470.0) | 0.538 | | Total sleep time (min) | 391.5 (335.0–428.0) | 389.5 (334.5–425.5) | 396.0 (335.0–430.0) | 0.869 | | % stage 1 | 7.0 (5.0–9.0) | 6.0 (4.0–8.0) | 7.0 (5.0–11.0) | 0.002 | | % stage 2 | 50.0 (44.0–58.0) | 50.0 (44.0–58.0) | 51.0 (45.0–58.0) | 0.898 | | % slow-wave sleep | 11.0 (5.0–17.0) | 11.0 (5.0–19.0) | 9.0 (4.0–15.0) | 0.090 | | % REM sleep | 17.0 (12.0–21.0) | 17.0 (12.0–21.0) | 17.0 (12.0–21.0) | 0.626 | | REM latency (min) | 82.0 (66.0–139.0) | 83.5 (66.0–136.0) | 80.5 (65.0–152.0) | 0.903 | | % wake after sleep onset | 8.0 (5.0–16.0) | 8.0 (5.0–16.0) | 9.0 (5.0–17.0) | 0.197 | | Number of awakenings | 22 (17–30) | 22 (16–29) | 24 (18–32) | 0.052 | | Microarousal index | 10 (6–15) | 9 (6–14) | 11 (6–19) | 0.038 | | Apnoea-hypopnoea index | 2.8 (0.6–12.8) | 1.7 (0.4–8.5) | 5.7 (1.0–16.7) | 0.001 | | Oxygen desaturation index | 1 (0–4) | 1 (0–3) | 2 (0–9) | 0.001 | | Total time under 90% of SaO2 (min) | 0.0 (0.0–5.0) | 0.0 (0.0–1.0) | 0.5 (0.0–14.0) | 0.001 | | PLMs index | 4.0 (0.7–10.7) | 2.9 (0.1–9.0) | 6.0 (1.4–15.0) | 0.008 | | Median (P25-P75) | Median (P25-P75) | Median (P25-P75) | Wilcoxon test |
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PLMs = periodic limb movements during sleep; REM = rapid eye movement.
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