Abstract: Objective To study the height development of children with bronchial asthma in Qingdao City, and to explore its influencing factors, so as to provide the scientific basis for prevention and clinical treatment. Methods Children with bronchial asthma who were treated in the respiratory department of 3 hospitals in Qingdao City from October 2022 to December 2023 were selected for this study. According to their height, they were divided into under height group and normal height group. Their medical records were collected, and their parents were surveyed by questionnaire. Descriptive analysis was used to analyze the height development of children with bronchial asthma, and univariate and multivariate analyses were used to analyze the influencing factors of height development. Results A total of 1 095 children with bronchial asthma in Qingdao City were included in this study, including 418 (38.17%) in the under height group and 677 (61.83%) in the normal height group. Multivariate logistic regression analysis showed that birth weight ≥2.5 kg (OR=0.786), age of first onset of asthma (OR=0.726), daily milk consumption (OR=0.832), and daily exercise time ≥0.5 h (OR=0.762) were protective factors for under height in asthmatic children (all P<0.05). Feeding pattern in 0-6 months of age (OR=3.118), partial diet (OR=2.078), asthma severity (OR=1.979), glucocorticoid use (OR=2.803), combined pulmonary hypertension (OR=2.078), disease duration (OR=3.365), and average annual asthma attacks (OR=2.770) were risk factors for under height in asthmatic children (all P<0.05). Conclusion Birth weight, age of first onset of asthma, feeding pattern in 0-6 months of age, daily milk consumption, partial diet, exercise time, asthma severity, glucocorticoid use, combined pulmonary hypertension, disease duration, and average annual asthma attacks are independent factors influencing the height development of children with bronchial asthma, providing evidence for clinical treatment and better protecting children's health.

Key words: Bronchial asthma, Children, Height, Development, Influencing factors