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© Research
Publication : International journal of epidemiology

Excess risk of subsequent infection in hospitalized children from a community cohort study in Cambodia and Madagascar.

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in International journal of epidemiology - 25 Mar 2022

Rambliere L, Kermorvant-Duchemin E, de Lauzanne A, Collard JM, Herindrainy P, Vray M, Garin B, Zo AZ, Rasoanaivo F, Rakotoarimanana Feno Manitra J, Raheliarivao TB, Diouf JN, Ngo V, Lach S, Long P, Borand L, Sok T, Abdou AY, Padget M, Madec Y, Guillemot D, Delarocque-Astagneau E, Huynh BT,

Link to Pubmed [PMID] – 35333344

Link to DOI – dyac04810.1093/ije/dyac048

Int J Epidemiol 2022 Mar; ():

Children in low- and middle-income countries are particularly vulnerable in the months following an initial health event (IHE), with increased risk of mortality caused mostly by infectious diseases. Due to exposure to a wide range of environmental stressors, hospitalization in itself might increase child vulnerability at discharge. The goal of this study was to disentangle the role of hospitalization on the risk of subsequent infection.Data from a prospective, longitudinal, international, multicenter mother-and-child cohort were analysed. The main outcome assessed was the risk of subsequent infection within 3 months of initial care at hospital or primary healthcare facilities. First, risk factors for being hospitalized for the IHE (Step 1) and for having a subsequent infection (Step 2) were identified. Then, inpatients were matched with outpatients using propensity scores, considering the risk factors identified in Step 1. Finally, adjusted on the risk factors identified in Step 2, Cox regression models were performed on the matched data set to estimate the effect of hospitalization at the IHE on the risk of subsequent infection.Among the 1312 children presenting an IHE, 210 (16%) had a subsequent infection, mainly lower-respiratory infections. Although hospitalization did not increase the risk of subsequent diarrhoea or unspecified sepsis, inpatients were 1.7 (95% Confidence Intervals [1.0-2.8]) times more likely to develop a subsequent lower-respiratory infection than comparable outpatients.For the first time, our findings suggest that hospitalization might increase the risk of subsequent lower-respiratory infection adjusted on severity and symptoms at IHE. This highlights the need for robust longitudinal follow-up of at-risk children and the importance of investigating underlying mechanisms driving vulnerability to infection.

https://pubmed.ncbi.nlm.nih.gov/35333344