Validation of the 'Test of the Adherence to Inhalers' (TAI) for Asthma and COPD Patients
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 electr...
| Autores: | , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Instituto de Salud Carlos III (ISCIII) |
| Repositorio: | Repisalud |
| Idioma: | inglés |
| OAI Identifier: | oai:repisalud.isciii.es:20.500.12105/20239 |
| Acceso en línea: | http://hdl.handle.net/20.500.12105/20239 |
| Access Level: | acceso abierto |
| Palabra clave: | Anti-asthmatic agents Administration and dosage Inhalers Medication adherence Medication non-adherence Questionnaires Pulmonary disease Chronic obstructive Drug therapy Validation studies Reproducibilidad de los Resultados Femenino Pulmón Administración por Inhalación Masculino Nebulizadores y Vaporizadores Cumplimiento de la Medicación Estudios Transversales Enfermedad Pulmonar Obstructiva Crónica Broncodilatadores Proyectos Piloto Humanos Persona de Mediana Edad Conocimientos, Actitudes y Práctica en Salud Anciano Asma Encuestas y Cuestionarios Adulto Psicometría España Área Bajo la Curva Curva ROC Area Under Curve Asthma Aged Spain Adult Pulmonary Disease, Chronic Obstructive Humans Health Knowledge, Attitudes, Practice Bronchodilator Agents Middle Aged Cross-Sectional Studies Lung Male |
| Sumario: | 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 with electronic adherence (=0.293, p=0.01). According to the best cut-off for 10 items (score 50, area under the ROC curve 0.7), 569 (62.5%) patients were classified as non-adherents. The non-adherence behavior pattern was: erratic 527 (57.9%), deliberate 375 (41.2%), and unwitting 242 (26.6%) patients. As compared to Morisky-Green test, TAI showed better psychometric properties. Conclusions: The TAI is a reliable and homogeneous questionnaire to identify easily non-adherence and to classify from a clinical perspective the barriers related to the use of inhalers in asthma and COPD. |
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