Effect of illness perceptions on asthma control and quality of life amongst adult outpatients with asthma in China

To investigated the influence of illness perceptions and other risk factors related to poor asthma control and quality of life in adult outpatients with asthma in China. Patients with a confirmed asthma diagnosis were recruited from the outpatient clinic at Zhongshan Hospital, Fudan University in Shanghai. Sociodemographic, psychological, and asthma related variables were assessed in all participants. Patients' illness perceptions, medication adherence, asthma control, and quality of life were assessed using validated questionnaires, such as the Brief Illness Perception Questionnaire, Medication Adherence Rating Scale (MARS-A), the Asthma Control Test, and the Mini Asthma Quality of Life Questionnaire. Multiple linear regressions and logistic regressions were used to examine the associations between illness perceptions, medication adherence behaviors, and disease outcome (i.e., asthma control and quality of life). A total of two hundred thirty-one (231) outpatients with asthma were included in this cross-sectional study, 80 of whom (34.6%) had asthma that was uncontrolled. Patients who perceived their life (β = - 0.197, p