Table 2
Polysomnographic data before and after procedures
| MA | EA 10 Hz | EA 2 Hz | Control | |||||
|---|---|---|---|---|---|---|---|---|
| 1st PSG | 2nd PSG | 1st PSG | 2nd PSG | 1st PSG | 2nd PSG | 1st PSG | 2nd PSG | |
| Sleep onset | 10.6 (7.5) | 8.75 (9.6) | 12.4 (8.8) | 9.0 (10.0) | 8.95 (13.0) | 7.45 (7.7) | 7.7 (11.57) | 6.5 (12.0) |
| REM onset | 123 (34.5) | 90.5 (103.5) | 66.7 (97.0) | 86.0 (51.0) | 93.25 (109.5) | 126.5 (87.0) | 103.7 (51.5) | 121.7 (57.5) |
| Sl ef (%) | 82.7 (11.2) | 85.5 (10.6) | 85.7 (9.6) | 86.0 (16.8) | 86.8 (6.6) | 88.1 (4.5) | 82.8 (16.1) | 89.4 (12.3) |
| REM stage (%) | 11.4 (14.9) | 17.1 (6.4) | 17.3 (6.4) | 13.8 (7.0) | 16.1 (9.2) | 15.3 (7.7) | 18.0 (3.1) | 14.3 (4.3) |
| AHI | 21.9 (8.3) | 11.2 (5.5)*† | 20.6 (5.6) | 9.95 (5.1)‡¶ | 21.0 (4.0) | 23.8 (17.2) | 18.9 (2.0) | 21.5 (7.7) |
| Apnoea Index | 5.15 (11.9) | 0.7 (1.6)*† | 8.2 (10.3) | 0.3 (1.5)‡ | 5.1 (5.0) | 1.4 (9.0) | 3.2 (6.8) | 5.9 (9.7) |
| Hypopnoea Index | 13.9 (9.3) | 8.45 (4.4)* | 11.3 (7.0) | 9.3 (5.5)ঠ| 15.5 (6.0) | 17.0 (12.0) | 15.8 (7.1) | 15.0 (5.7) |
| Res Ev | 120.5 (42.0) | 61.0 (41.0) | 117.0 (42.0) | 56.0 (39.0) | 130.0 (29.0) | 135.0 (103.0) | 125.5 (31.0) | 129.0 (55.0) |
| Microarousal | 146.0 (39.0) | 88.5 (51.0) | 108.0 (77.0) | 73.5 (27.0) | 153.5 (32.0) | 129.0 (64.0) | 94.5 (86.0) | 111.0 (43.0) |
| M SaO2 (%) | 93.9 (1.8) | 94.4 (2.0) | 94.9 (1.4) | 95.3 (2.0) | 94.5 (2.0) | 94.6 (3.0) | 95.0 (3.1) | 94.2 (2.0) |
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Data are median (interquartile range).
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Significant differences between groups (p<0.05, Mann–Whitney):
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↵* MA versus control group;
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↵† MA versus EA 2 Hz;
-
↵‡ EA 10 Hz versus control group;
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↵¶ EA 10 Hz versus EA 2 Hz.
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AHI, Apnoea–Hypopnoea Index, EA, electroacupuncture; MA, manual acupuncture; M SaO2, mean SaO2; PSG, polysomnography; REM, rapid eye movement; Res Ev, respiratory events, Sl ef, sleep efficiency.
