This study evaluates the effectiveness and cost-effectiveness of OSA diagnosed assisted by a home sleep study with ApneaDx™. This study will be conducted by the Toronto Health Economics and Technology Assessment (THETA) Collaborative. Data from this study will be used to support practice recommendations regarding the use of a home sleep study with ApneaDx™ as input for diagnosis of OSA by the OHTAC and reimbursement considerations by the Ontario Ministry of Health and Long-Term Care.