Study Suggests Type of Asthma (Allergic vs. Non-allergic) Impacts COVID-19 Severity in Adults

Researchers Zhu et al from the Harvard T.H. Chan School of Public Health and Massachusetts General Hospital analyzed data from 492,768 participants in the UK Biobank, which stores biologic samples from participants and is linked to their medical records. The researchers found 65,677 participants had asthma and 641 patients had severe COVID-19. “After adjusting for age, sex, body mass index, and other factors, the researchers found that having non-allergic asthma increased the risk of severe COVID-19 by as much as 48%. They also found that the risk of severe COVID-19 increased by as much as 82% among people with asthma and chronic obstructive pulmonary disease. Importantly, however, the study showed that people with allergic asthma had no statistically significant association with severe COVID-19.” The researchers published their results in the Journal of Allergy and Clinical Immunology in June.