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Validation of the CPAP Habit Index-5: A Tool to Understand Adherence to CPAP Treatment in Patients with Obstructive Sleep Apnea
Jönköping University, School of Health Science, HHJ, Dep. of Nursing Science. Jönköping University, School of Health Science, HHJ. ADULT.
Division of Health Care Analysis, Faculty of Health Sciences, Department of Health and Society, Linköping University, 581 83 Linköping, Sweden.
Health Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, London, WC1E 6BT, UK.
Department of Cardiology, Linköping University Hospital, 581 85 Linköping, Sweden.
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2014 (English)In: Sleep Disorders, ISSN 2090-3545, E-ISSN 2090-3553, no 929057, 1-9 p.Article in journal (Refereed) Published
Abstract [en]

Long-term adherence to continuous positive airway pressure (CPAP) is low among patients with obstructive sleep apnea (OSA). The potential role of "habit" in sustaining adherence to CPAP use has not been studied. This study aimed to establish the relevance of habit to CPAP adherence, via validation of an adaptation of the Self-Report Habit Index (the CPAP Habit Index-5; CHI-5). Analyses focused on the homogeneity, reliability, and factor structure of the CHI-5 and, in line with theoretical predictions, its utility as a predictor of long-term CPAP adherence in middle-aged patients with OSA. A prospective longitudinal design was used. 117 patients with objectively verified OSA intended for CPAP treatment were recruited. Data was collected via clinical examinations, respiratory recordings, questionnaires, and CPAP devices at baseline, 2 weeks, 6 months, and 12 months. The CHI-5 showed satisfactory homogeneity interitem correlations (0.42-0.93), item-total correlations (0.58-0.91), and reliability ( α = 0.92). CHI-5 data at 6 months showed a one-factor solution and predicted 63% of variance in total CPAP use hours after 12 months. Based on the satisfactory measurement properties and the high amount of CPAP use variance it explained, the CHI-5 can be seen as a useful tool in clinical practice.

Place, publisher, year, edition, pages
2014. no 929057, 1-9 p.
National Category
URN: urn:nbn:se:hj:diva-25560DOI: 10.1155/2014/929057PubMedID: 24876975Local ID: HHJADULTISOAI: diva2:778101
Available from: 2015-01-09 Created: 2015-01-09 Last updated: 2015-02-04Bibliographically approved

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