Polysomnography |
Attended (level I study) | Low-to-moderate probability of OSA Nondiagnostic HSAT/oximetry and suspected OSA Suspected sleep disorder other than OSA Suspected CSA or hypoventilation | Gold standard | Gold standard |
Unattended (level II study) | Predominantly used for research purposes | Sn: 0.88–0.97 Sp: 0.50–0.56 | Sn: 0.94–0.95 Sp: 0.76–0.77 |
Home sleep apnea testing |
Level III study | Moderate-to-high probability of OSA without comorbidity Unable to perform PSG because of immobility or infirmity Confirm treatment efficacy | Sn: 0.90–1.00 Sp: 0.30–0.67 | Sn: 0.66–0.88 Sp: 0.62–1.00 |
Two- or three-channel study | Sn: 0.80–0.96 Sp: 0.65–0.83 | Sn: 0.66–0.88 Sp: 0.62–1.00 |
Single-channel study | Sn: 0.96† Sp: 0.82† | Sn: 0.55–0.91 Sp: 0.70–0.82 |
Peripheral arterial tone study | Sn: 0.96† Sp: 0.43† | Sn: 0.92–0.96 Sp: 0.77–1.00 |
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