期刊
BRITISH JOURNAL OF HAEMATOLOGY
卷 -, 期 -, 页码 -出版社
WILEY
DOI: 10.1111/bjh.19234
关键词
blood group; pneumonia; respiratory infection
类别
This study analyzes the association between the severity of non-SARS-CoV-2 respiratory infection and blood group, and finds that blood group may influence clinical outcomes. Group A and RhD-positive blood types are overrepresented in both pneumonia and non-pneumonic lower respiratory tract infection patients, while group O is underrepresented. Individuals with group A blood type have a higher risk of hospitalization, while RhD-positive patients have a reduced risk of cardiovascular complications.
Despite significant global morbidity associated with respiratory infection, there is a paucity of data examining the association between severity of non-SARS-CoV-2 respiratory infection and blood group. We analysed a prospective cohort of adults hospitalised in Bristol, UK, from 1 August 2020 to 31 July 2022, including patients with acute respiratory infection (pneumonia [n = 1934] and non-pneumonic lower respiratory tract infection [NP-LRTI] [n = 1184]), a negative SARS-CoV-2 test and known blood group status. The likelihood of cardiovascular complication, survival and hospital admission length was assessed using regression models with group O and RhD-negative status as reference groups. Group A and RhD-positive were over-represented in both pneumonia and NP-LRTI compared to a first-time donor population (p < 0.05 in all); contrastingly, group O was under-represented. ABO group did not influence cardiovascular complication risk; however, RhD-positive patients with pneumonia had a reduced odds ratio (OR) for cardiovascular complications (OR = 0.77 [95% CI = 0.59-0.98]). Compared to group O, group A individuals with NP-LRTI were more likely to be discharged within 60 days (hazard ratio [HR] = 1.17 [95% CI = 1.03-1.33]), while group B with pneumonia was less likely (HR = 0.8 [95% CI = 0.66-0.96]). This analysis provides some evidence that blood group status may influence clinical outcome following respiratory infection, with group A having increased risk of hospitalisation and RhD-positive patients having reduced cardiovascular complications.
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