Validation of CollaboRATE and SURE - two short questionnaires to measure shared decision making during CPAP initiation.

Validation of CollaboRATE and SURE - two short questionnaires to measure shared decision making during CPAP initiation. J Sleep Res. 2018 Dec 13;:e12808 Authors: Broström A, Pakpour AH, Nilsen P, Hedberg B, Ulander M Abstract Adherence to continuous positive airway pressure (CPAP) treatment tends to be low. Brief validated instruments focusing on shared decision making have not been used in a CPAP context. The aim was to investigate factorial structure, categorical functioning of the response scale and differential item functioning across sub-populations of the CollaboRATE and Sure questionnaires among patients with obstructive sleep apnea (OSA) before CPAP treatment is initiated. A prospective design, including 193 objectively diagnosed (polygraphy) OSA patients (68% men, 59.7 years, SD 11.5) from two CPAP clinics was used. Data were collected with the following questionnaires; Sure, CollaboRATE, Attitudes to CPAP Inventory, Epworth sleepiness scale, minimal insomnia symptoms scale, and hospital anxiety and depression scale. Objective CPAP use was collected after 6 months; 49% demonstrated decisional conflict on SURE and 51% scored low levels of shared decision making on CollaboRATE. Unidimensionality was found for both CollaboRATE (one factor explaining 57.4%) and SURE (one factor explaining 53.7%), as well as local independence. Differential item functioning showed both to be invariant across both male and female patients. Inte...
Source: Journal of Sleep Research - Category: Sleep Medicine Authors: Tags: J Sleep Res Source Type: research