Journal
BMC INFECTIOUS DISEASES
Volume 21, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s12879-021-06954-3
Keywords
Respiratory tract infections; Community; Predisposing factors
Categories
Funding
- National Institute for Health Research -School for Primary Care Research (NIHR-SPCR) Launching Fellowship
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This study identified modifiable risk factors associated with increased likelihood of acquiring respiratory tract infections in the community, including low BMI, contact with children and pets. Modification of these risk factors and increased awareness of vulnerable groups could help reduce morbidity, mortality, and antibiotic use associated with respiratory tract infections.
Background Preventing respiratory tract infections (RTIs) could have profound effects on quality of life, primary care workload, antibiotic prescribing and stewardship. We aimed to identify factors that increase and decrease RTI acquisition within Organisation for Economic Cooperation and Development (OECD) member countries. Methods Systematic search of Medline, Embase, Cochrane and ISI Web of Knowledge for studies conducted up to July 2020 reporting predisposing factors for community RTI acquisition. Pooled odds ratios were calculated using a random-effects model. Results 23 studies investigated risk factors associated with community-acquired pneumonia (n = 15); any RTI (n = 4); influenza like illness (n = 2); and lower RTI (n = 2). Demographic, lifestyle and social factors were: underweight BMI (pooled odds ratio (ORp 2.14, 95% CI 1.58 to 2.70, p = 0.97); male sex (ORp 1.30, 95% CI 1.27 to 1.33, p = 0.66); contact with pets (ORp 1.35, 95% CI 1.16 to 1.54, p = 0.72); contact with children (ORp 1.35, 95% CI 1.15 to 1.56, p = 0.05); and ex-smoking status (ORp 1.57, 95% CI 1.26 to 1.88, p = 0.76). Health-related factors were: chronic liver condition (ORp 1.30, 95% CI 1.09 to 1.50, p = 0.34); chronic renal condition (ORp 1.47, 95% CI 1.09 to 1.85, p = 0.14); and any hospitalisation in previous five years (ORp 1.64, 95% CI 1.46 to 1.82, p = 0.66). Conclusions We identified several modifiable risk factors associated with increased likelihood of acquiring RTIs in the community, including low BMI, contact with children and pets. Modification of risk factors and increased awareness of vulnerable groups could reduce morbidity, mortality and antibiotic use associated with RTIs. PROSPERO registration CRD42019134176.
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