Details

Autor(en) / Beteiligte

• Allen, AJ Hirsch
• Beaudin, Andrew E.
• Fox, Nurit
• Raneri, Jill K.
• Skomro, Robert P.
• Hanly, Patrick J.
• Mazzotti, Diego R.
• Keenan, Brendan T.
• Smith, Eric E.
• Goodfellow, Sebastian D.
• Ayas, Najib T.

Titel

Symptom subtypes and cognitive function in a clinic-based OSA cohort: a multi-centre Canadian study

Ist Teil von

• Sleep medicine, 2020-10, Vol.74, p.92-98

Ort / Verlag

Netherlands: Elsevier B.V

Erscheinungsjahr

2020

Quelle

MEDLINE

Beschreibungen/Notizen

• Distinct symptom subtypes are found in patients with OSA. The association between these subtypes and neurocognitive function is unclear. Objective: The purposes of this study were to assess whether OSA symptom subtypes are present in a cohort of Canadian patients with suspected OSA and evaluate the relationship between subtypes and neurocognitive function. Patients with suspected OSA who completed a symptom questionnaire and underwent testing for OSA were included. Symptom subtypes were identified using latent class analysis. Associations between subtypes and neurocognitive outcomes (Montreal Cognitive Assessment [MoCA], Rey Auditory Verbal Learning Test [RAVLT], Wechsler Adult Intelligence Scale [WAIS-IV], Digit-Symbol Coding subtest [DSC]) were assessed using analysis of covariance (ANCOVA), controlling for relevant covariates. Four symptom subtypes were identified in patients with OSA (oxygen desaturation index ≥5 events/hour). Three were similar to prior studies, including the Excessively Sleepy (N=405), Disturbed Sleep (N=382) and Minimally Symptomatic (N=280), and one was a novel subtype in our sample defined as Excessively Sleepy with Disturbed Sleep (N=247). After covariate adjustment, statistically significant differences among subtypes (p=0.037) and among subtypes and patients without OSA (p=0.044) were observed in DSC scores; the Minimally Symptomatic subtype had evidence of higher DSC scores than all other groups, including non-OSA patients. No differences were seen in MoCA or RAVLT. Results support the existence of previously identified OSA symptom subtypes of excessively sleepy, disturbed sleep and minimally symptomatic in a clinical sample from Canada. Subtypes were not consistently associated with neurocognitive function across multiple instruments. •Latent Class Analysis was used to investigate the presence of symptom subtypes in a clinic-based sample of Canadian subjects with suspected OSA.•Four distinct symptom subtypes were identified, and these subtypes were similar to those found in previous studies.•Symptom Subtypes were not consistently associated with neurocognitive function across multiple instruments.