Table 2.
Medians (ranges) of laboratory night 3 objective and subjective sleep parameters of good sleepers (GS) and paradoxical (PARA-I) and psychophysiological (PSY-I) insomnia sufferers.
| GS | PARA-I | PSY-I | |
|---|---|---|---|
| Subjective | |||
| SOL (min) | 8.00 (0.00–25.00)b,c | 30.00 (0.00–120.00)a,b | 15.00 (8.00–60.00)a,c |
| WASO (min) | 3.00 (0.00–45.00)b,c | 60.00 (0.00–240.00)a,b | 17.50 (0.00–120.00)a,c |
| TST (min) | 450.00 (350.00–516.00)b | 327.50 (0.00–390.00)a,b | 420.00 (332.00–491.00)a |
| SE (%) | 95.83 (82.97–100.00)b,c | 69.38 (11.76–81.30)a,b | 88.20 (69.40–95.83)a,c |
| Objective | |||
| SOL (min) | 6.00 (1.00–31.33) | 5.67 (2.00–32.67) | 6.67 (1.33–30.33) |
| WASO (min) | 16.33 (3.67–64.00) | 29.50 (5.00–44.67) | 22.34 (1.00–136.67) |
| TST (min) | 424.00 (345.67–491.00) | 419.00 (371.33–458.33) | 424.67 (335.00–507.00) |
| SE (%) | 94.00 (85.00–98.00) | 90.50 (88.00–96.00) | 92.50 (72.00–99.00) |
| Stage 1 | |||
| Total time (min) | 8.00 (1.00–32.33) | 6.34 (1.33–22.67) | 10.67 (1.67–35.33) |
| Proportion (%) | 1.82 (0.21–8.44) | 1.52 (0.32–5.67) | 2.86 (0.45–7.46) |
| Stage 2 | |||
| Total time (min) | 257.67 (170.00–350.00) | 248.67 (175.00–324.67) | 276.67 (148.33–360.00) |
| Proportion (%) | 62.69 (40.28–71.28) | 61.24 (41.63–72.26) | 64.13 (33.36–79.76) |
| SWS | |||
| Total time (min) | 21.67 (0.84–62.67) | 20.50 (4.50–73.50) | 12.92 (0.00–97.00) |
| Proportion (%) | 4.87 (0.23–14.51) | 4.78 (0.99–17.49) | 2.93 (0.00–21.82) |
| REM | |||
| Total time (min) | 114.67 (60.00–169.33) | 103.84 (63.67–139.67) | 103.34 (67.33–164.67) |
| Proportion (%) | 26.85 (17.36–37.64) | 25.04 (17.15–32.67) | 25.66 (14.92–37.97) |
Note. SOL: sleep onset latency. WASO: wake after sleep onset. TST: total sleep time. SE: sleep efficiency. SWS: slow wave sleep. REM: rapid eye movement. a: significant difference between the PARA-I and PSY-I. b: significant difference between the PARA-I and GS. c: significant difference between the PSY-I and GS.