Validation of the 'Test of the Adherence to Inhalers' (TAI) for Asthma and COPD Patients.

ABSTRACT:

Background

To validate the 'Test of Adherence to Inhalers' (TAI), a 12-item questionnaire designed to assess the adherence to inhalers in patients with COPD or asthma.

Methods

A total of 1009 patients with asthma or COPD participated in a cross-sectional multicenter study. Patients with electronic adherence ≥80% were defined as adherents. Construct validity, internal validity, and criterion validity were evaluated. Self-reported adherence was compared with the Morisky-Green questionnaire.

Results

Factor analysis study demonstrated two factors, factor 1 was coincident with TAI patient domain (items 1 to 10) and factor 2 with TAI health-care professional domain (items 11 and 12). The Cronbach's alpha was 0.860 and the test-retest reliability 0.883. TAI scores correlated

SUBMITTER: Plaza V 

PROVIDER: S-EPMC4841905 | biostudies-literature | 2016 Apr

REPOSITORIES: biostudies-literature