Long-term Breastfeeding in the Prevention of Allergic Rhinitis: Allergic Rhinitis Cohort Study for Kids (ARCO-Kids Study).

Authors:
Doo Hee Han
Doo Hee Han
Seoul National University College of Medicine
South Korea
Jong Seung Kim
Jong Seung Kim
Korea University
South Korea
Dong-Young Kim
Dong-Young Kim
Seoul National University College of Medicine
South Korea
Sungji Moon
Sungji Moon
Seoul National University College of Medicine
Jung-Soo Kim
Jung-Soo Kim
Kyungpook National University
South Korea
Joong Saeng Cho
Joong Saeng Cho
Kyung Hee University
South Korea

Clin Exp Otorhinolaryngol 2019 Aug 18;12(3):301-307. Epub 2019 Apr 18.

Department of Otorhinolaryngology, Seoul National University College of Medicine, Seoul, Korea.

Objectives: There is a great deal of interest in the possibility that environmental factors may influence the risk of developing allergic rhinitis (AR) in early life. We investigated the simultaneous effects of mode of delivery and duration of breastfeeding on the development of AR in children.

Methods: Data from 1,374 children participating in the Allergic Rhinitis Cohort Study for kids (ARCO-kids study) was analyzed. All subjects were divided into AR or non-allergic rhinitis (NAR) groups. Data on environmental factors, mode of delivery and duration of breastfeeding were collected using a questionnaire.

Results: Compared with short-term breastfeeding (<6 months), long-term breastfeeding (≥12 months) was significantly associated with a lower prevalence of AR (adjusted odds ratio [aOR], 0.54; 95% confidence interval [CI], 0.34 to 0.88). Children in the AR group also had a higher cesarean delivery rate than those in the NAR group (39.1% vs. 32.8%, P=0.05). Regarding the combined effects of mode of delivery and duration of breastfeeding, long-term breastfeeding with a vaginal delivery strongly suppressed the development of AR, compared to short-term breastfeeding with a cesarean delivery (aOR, 0.47; 95% CI, 0.30 to 0.73).

Conclusion: Long-term breastfeeding (≥12 months) and a vaginal delivery are associated with a lower risk of developing childhood AR.

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Source
http://dx.doi.org/10.21053/ceo.2018.01781DOI Listing

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August 2019
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