Table 4 Comparison of polysomnographic data between patients with and without insomnia
Patients with insomnia (ISI score > 7) (n = 8) | Patients without insomnia (ISI score ≤ 7) (n = 6) | P | |
|---|---|---|---|
Sleep Latency (min) | 26 (16–29) | 19 (11–25) | 0.57 |
Sleep latency > 45 min | 1 (13%) | 1 (17%) | 1.00 |
Total Sleep Time (min) | 415 (343–500) | 453 (441–526) | 0.35 |
N1 (min) | 16 (8–21) | 10 (8–15) | 0.57 |
N1 (% TST) | 4 (2–5) | 2 (2–3) | 0.32 |
N2 (min) | 242 (182–274) | 195 (183–234) | 0.57 |
N2 (% TST) | 51 (44–57) | 45 (40–52) | 0.29 |
N3 (min) | 80 (72–118) | 124 (95–145) | 0.16 |
N3 (% TST) | 21 (15–26) | 26 (21–32) | 0.42 |
REM (min) | 87 (65–112) | 119 (112–164) | 0.13 |
REM (% TST) | 22 (18–23) | 27 (25–30) | 0.05 |
Sleep Efficiency (%) | 88 (86–92) | 94 (88–96) | 0.18 |
Arousal index (/h) | 11 (6–14) | 8 (5–12) | 0.35 |
Wake after sleep onset (min) | 60 (35–109) | 37 (28–81) | 0.66 |
PLM (/h) | 0 (0–0) | 0 (0–0) | 1.00 |
PLM > 15/h | 0 (0%) | 0 (0%) | 1.00 |
Apnea–Hypopnea Index (/h) | 0 (0–2) | 1 (0–4) | 0.85 |
Mean SpO2 during sleep (%) | 92 (92–94) | 96 (94–96) | < 0.05 |
% SpO2 < 90% asleep | 0 (0–3) | 0 (0–0) | 0.53 |
Oxygen Desaturation Index (3%) (/h) | 3 (2–7) | 4 (3–6) | 0.45 |
Mean PtcCO2 during sleep (mmHg) | 45 (41–46) | 46 (43–47) | 0.25 |
Max PtcCO2 during sleep (mmHg) | 47 (44–50) | 50 (47–51) | 0.59 |
% PtcCO2 > 50 mmHg | 0 (0–2) | 0 (0–2) | 1.00 |