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Birth Month and Prevalence of Atopic Dermatitis in Children Under 3 Years in Antananarivo, Madagascar

Authors Sendrasoa FA, Ratovonjanahary VT, Razanakoto NH, Rakotoarisaona MF, Raharolahy O, Andrianarison M, Ranaivo IM, Mbotinirina VE, Sata M, Ramarozatovo LS, Rapelanoro Rabenja F

Received 28 May 2020

Accepted for publication 29 July 2020

Published 12 August 2020 Volume 2020:13 Pages 265—268

DOI https://doi.org/10.2147/JAA.S264482

Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Luis Garcia-Marcos


Fandresena Arilala Sendrasoa, Volatantely Tobiniaina Ratovonjanahary, Naina Harinjara Razanakoto, Mendrika Fifaliana Rakotoarisaona, Onivola Raharolahy, Malalaniaina Andrianarison, Irina Mamisoa Ranaivo, Viviane Estelle Mbotinirina, Moril Sata, Lala Soavina Ramarozatovo, Fahafahantsoa Rapelanoro Rabenja

Department of Dermatology, Faculty of Medicine, University of Antananarivo, Antananarivo, Madagascar

Correspondence: Fandresena Arilala Sendrasoa
Department of Dermatology, Faculty of Medicine Antananarivo, Antananarivo 101, Madagascar
Tel +261 341420496
Email nasendrefa@yahoo.fr

Background: Several studies have been done to evaluate the relationship between month of birth and atopic diseases but the results are contradictory.
Objective: We aim to evaluate the correlation between the month of birth and the prevalence of AD in Malagasy children less than 3 years.
Methods: A case-control study was conducted based on patients’ data of the department of Dermatology in the University Hospital Joseph Raseta Befelatanana (UH/JRB) Antananarivo. It included 438 children less than 3 years seen in this department between January 2010 and December 2019. For each atopic dermatitis (AD) patient, two age-and sex-matched controls without a history of AD were selected from the same period.
Results: This study included 146 AD cases and 292 non-AD controls. Our case-control study found that there is a statistically significant correlation between birth month and risk of AD in Malagasy children < 3 years. Compared with people born in December, people born in April had the highest risk of AD (OR: 2.11, 95% CI 0.93– 4.78), followed by people born in March (OR: 1.52, 95% CI 0.79– 2,88). Asthma, allergic rhinitis and allergic conjunctivitis were significantly correlated with AD in our patients.
Conclusion: Our case-control study found that being born in April and March (dry season) may be associated with an increased risk of AD.

Keywords: birth month, atopic dermatitis, children, Madagascar

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