Results of cardiorespiratory polygraphy and polysomnogram by apnoea/hypopnoea index (AHI) category
| Polysomnography | MERLIN cardiorespiratory polygraphy | |||||
| AHI <10 | AHI ≥10 | Total | AHI <10 | AHI ≥10 | Total | |
| Subjects n | 15 | 64 | 79 | 15 | 64 | 79 |
| Total recording time min | 384.3±39.8 | 376.3±53.2 | 377.8±50.8 | 389.5±50.2 | 374.8±59.8 | 377.6±58.1 |
| Sleep efficiency % | 79.3 (12.7) | 80.6 (14.4) | 80.4 (14) | |||
| Apnoeas total no. | 4.7 (5.4) | 111.2 (122.0) | 91.0 (117.4) | |||
| Automatic scores | 16.5 (62.1) | 20.5 (36.4) | 19.8 (42.0) | |||
| Manual scores | 7.4 (12.5) | 105.8 (137.5) | 87.1 (129.6) | |||
| Hypopnoeas total no. | 11.7 (9.3) | 99.5 (83.0) | 82.8 (82.4) | |||
| Automatic scores | 26.3 (80.1) | 49.4 (78.1) | 45.0 (78.5) | |||
| Manual scores | 27.4 (23.3) | 122.0 (79.9) | 104.1 (81.6) | |||
| Apnoeas+hypopnoeas total no. | 16.3 (11.0) | 210.7 (140.2) | 173.8 (147.6) | |||
| Automatic scores | 42.8 (142.1) | 69.9 (102.3) | 64.8 (110.4) | |||
| Manual scores | 34.8 (32.2) | 227.8 (139.3) | 191.2 (147.2) | |||
| Apnoea/hypopnoea index | 3.1 (2.1) | 41.8 (27.7) | 34.4 (29.2) | |||
| Respiratory event index | ||||||
| Automatic scores | 6.9 (23.2) | 11.2 (17.0) | 10.4 (18.2) | |||
| Manual scores | 5.3 (5.1) | 36.4 (23.4) | 30.5 (24.5) | |||
| Percentage time <90% Sa,O2 | 2.5 (6.7) | 19.2 (26.2) | 16.0 (24.6) | 1.9 (4.3) | 21.6 (23.7) | 17.8 (22.8) |
Data as mean±sd