Risk factors for community-acquired bacterial infection among young infants in South Asia: a longitudinal cohort study with nested case–control analysis
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Published:2022-11
Issue:11
Volume:7
Page:e009706
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ISSN:2059-7908
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Container-title:BMJ Global Health
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language:en
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Short-container-title:BMJ Glob Health
Author:
Connor Nicholas EORCID, Islam Mohammad Shahidul, Mullany Luke C, Shang Nong, Bhutta Zulfiqar A, Zaidi Anita K M, Soofi SajidORCID, Nisar ImranORCID, Panigrahi Pinaki, Panigrahi Kalpana, Satpathy Radhanath, Bose Anuradha, Isaac Rita, Baqui Abdullah H, Mitra Dipak K, Sadeq-ur Rahman Qazi, Hossain Tanvir, Schrag Stephanie J, Winchell Jonas M, Arvay Melissa L, Diaz Maureen H, Waller Jessica L, Weber Martin W, Hamer Davidson H, Hibberd Patricia, Nawshad Uddin Ahmed A S M, Islam Maksuda, Hossain Mohammad Belal, Qazi Shamim A, El Arifeen Shams, Darmstadt Gary LORCID, Saha Samir K
Abstract
ObjectiveRisk factors predisposing infants to community-acquired bacterial infections during the first 2 months of life are poorly understood in South Asia. Identifying risk factors for infection could lead to improved preventive measures and antibiotic stewardship.MethodsFive sites in Bangladesh, India and Pakistan enrolled mother–child pairs via population-based pregnancy surveillance by community health workers. Medical, sociodemographic and epidemiological risk factor data were collected. Young infants aged 0–59 days with signs of possible serious bacterial infection (pSBI) and age-matched controls provided blood and respiratory specimens that were analysed by blood culture and real-time PCR. These tests were used to build a Bayesian partial latent class model (PLCM) capable of attributing the probable cause of each infant’s infection in the ANISA study. The collected risk factors from all mother–child pairs were classified and analysed against the PLCM using bivariate and stepwise logistic multivariable regression modelling to determine risk factors of probable bacterial infection.ResultsAmong 63 114 infants born, 14 655 were assessed and 6022 had signs of pSBI; of these, 81% (4859) provided blood samples for culture, 71% (4216) provided blood samples for quantitative PCR (qPCR) and 86% (5209) provided respiratory qPCR samples. Risk factors associated with bacterial-attributed infections included: low (relative risk (RR) 1.73, 95% credible interval (CrI) 1.42 to 2.11) and very low birth weight (RR 5.77, 95% CrI 3.73 to 8.94), male sex (RR 1.27, 95% CrI 1.07 to 1.52), breathing problems at birth (RR 2.50, 95% CrI 1.96 to 3.18), premature rupture of membranes (PROMs) (RR 1.27, 95% CrI 1.03 to 1.58) and being in the lowest three socioeconomic status quintiles (first RR 1.52, 95% CrI 1.07 to 2.16; second RR 1.41, 95% CrI 1.00 to 1.97; third RR 1.42, 95% CrI 1.01 to 1.99).ConclusionDistinct risk factors: birth weight, male sex, breathing problems at birth and PROM were significantly associated with the development of bacterial sepsis across South Asian community settings, supporting refined clinical discernment and targeted use of antimicrobials.
Funder
Bill & Melinda Gates Foundation
Subject
Public Health, Environmental and Occupational Health,Health Policy
Reference60 articles.
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