A CAUSAL MODEL OF ASTHMA CONTROL IN ADULTS WITH ASTHMA

Abstract

Asthma control is the goal of asthma management to prevent exacerbations and minimize morbidity. Currently was reported poor control and not achieved asthma management goal. The purpose of this study was to develop and test a causal model of asthma control among adults with asthma. A sample of 336 participants was recruited from asthma and COPD clinics in tertiary hospitals in eastern Thailand. Data were collected by self-administered questionnaires including the Demographic data form, the Brief illness perception questionnaire, the Depression subscale of Hospital Anxiety and depression Scale, the Job Stress Scale, the Functional, Communicative, and Critical Health Literacy Scale, the Self-efficacy subscale of the Knowledge, Attitude, and Self-efficacy Asthma Questionnaire, the multidimensional scale of perceived social support, the Asthma Self-Management Behavior Instrument, and The asthma control questionnaire. AMOS software program was used to test the model of asthma control.

The results showed that the final model of asthma control consisted of illness perception, depression, job stress, health literacy, asthma self-efficacy, social support, and asthma self-management behaviors, which explained 54% of the total variance for asthma control (R2=.54). Asthma self-management behaviors and job stress had a direct effect on asthma control, whereas asthma self-efficacy, social support, and asthma self-management behaviors were a moderator between illness perception, depression, job stress, health literacy, and asthma control. These findings suggest that nurses should develop nursing interventions to improve asthma control by reducing depression and job stress and promoting illness perception, health literacy, asthma self-efficacy, social support, and asthma self-management behaviors.

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