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In-hospital survival paradox in patients with sleep apnea—A nation-wide nested case-control study

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  • Maurice Moser
  • Florent Baty
  • Martin H Brutsche
  • Otto D Schoch

Abstract

Background: Sleep apnea (SA) is a prevalent disorder characterized by recurrent events of nocturnal apnea originating from obstructive and/or central mechanisms. SA disrupts normal sleep and can lead to a series of complications when left untreated. SA results in intermittent hypoxia which has an impact on the cardio- and cerebrovascular system. Hospitalized patients with SA typically have a greater burden of comorbidity, a longer length of hospital stay, but may show an improvement of in-hospital mortality compared to patients without diagnosed SA. The reason for this survival benefit is controversial and we aimed to clarify this protective effect in the light of predictive factors including SA-associated comorbidities using a nation-wide hospitalization database. Methods and findings: Data were extracted from a nation-wide hospitalization database provided by the Swiss Federal Office for Statistics. Hospitalized patients with a SA co-diagnosis were extracted from the database together with a 1:1-matched control population without SA. Overall, 212’581 patients with SA were hospitalized in Switzerland between 2002 and 2018. Compared to the controls, SA cases had a longer median length of hospital stay (7 days; 95% CI: 3 to 15 vs. 4 days; 95% CI: 2 to 10) (p

Suggested Citation

  • Maurice Moser & Florent Baty & Martin H Brutsche & Otto D Schoch, 2022. "In-hospital survival paradox in patients with sleep apnea—A nation-wide nested case-control study," PLOS ONE, Public Library of Science, vol. 17(7), pages 1-13, July.
    • Handle: RePEc:plo:pone00:0271004
    DOI: 10.1371/journal.pone.0271004
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    1. repec:plo:pmed00:0040296 is not listed on IDEAS
    2. Florent Baty & Paul Martin Putora & Bruno Isenring & Torsten Blum & Martin Brutsche, 2013. "Comorbidities and Burden of COPD: A Population Based Case-Control Study," PLOS ONE, Public Library of Science, vol. 8(5), pages 1-9, May.
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