Table 4.
Comparison between true positive and false positive responders in relation to MSQ and PSG variables
| True Positives | False Positives | Chi/t | p | |
|---|---|---|---|---|
| N=79 | N=17 | |||
| MSQ items | ||||
| 1b. Patient injury | 25 (32%) | 1 (6%) | 4.70 | <0.04 |
| 1c. Bedpartner injury | 30 (38%) | 3 (17%) | 2.56 | ns |
| 5. Snort/choke awake | 30 (38%) | 12 (71%) | 6.05 | <0.02 |
| 6. Stopped breathing | 32 (41%) | 10 (59%) | 1.90 | ns |
| PSG findings | ||||
| Mean AHI | 11.1 (+/−11) | 22.7 (+/−25) | 3.0 | <0.01 |
| AHI ≤ 5 | 33 (42%) | 6 (35%) | 0.24 | ns |
| AHI ≥ 10 | 32 (41%) | 9 (53%) | 0.89 | ns |
| AHI ≥ 20 | 15 (19%) | 7 (41%) | 3.90 | <0.05 |
Abbreviations: AHI=apnea/hypopnea index, MSQ=Mayo Sleep Questionnaire, ns=not
significant, PSG=polysomnography