Observational studyBMJ open respiratory research2026
Incidence, risk factors and viral aetiology of lower respiratory infections among older adults: a 5-year multicentric cohort study in India.
Observational study in BMJ open respiratory research, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundWe estimated the incidence, viral aetiology and risk factors of acute lower respiratory infection (ALRI) and severe ALRI among community-dwelling older adults at four sites in India.
methodsAdults ≥60 years were recruited and followed between July 2018 and March 2023. Each week, trained nurses screened all participants for ALRI using modified British Thoracic Society criteria. ALRI was further categorised as severe ALRI if the respiratory rate was >30 breaths per minute or the SPO
resultsWe followed 7240 participants for 19 914 person-years; 59.5% were women. Their mean age was 66.2 years. The incidence of ALRI, severe ALRI and respiratory hospitalisation was 98.0/TPYs, 22.1/TPYs and 12.1/TPYs, respectively. Males (aRR: 1.2), those with body mass index <18.5 kg/m
conclusionRates of ALRI and severe ALRI were high; malnutrition, chronic morbidities and the use of solid fuel were important risk factors for severe ALRI.
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