Trends in social inequality in breastfeeding duration in Denmark 2002–2019

Author:

Carlsson Rikke R.1ORCID,Pommerencke Lis Marie1,Pant Sofie W.1,Jørgensen Sanne E.1,Madsen Katrine R.1ORCID,Bonnesen Camilla T.1,Kierkegaard Lene1,Pedersen Trine P.1ORCID

Affiliation:

1. National Institute of Public Health, University of Southern Denmark, Copenhagen, Denmark

Abstract

Aims: The aim of the present study was to analyse trends in full breastfeeding for at least 4 months across socioeconomic position in Denmark over a 17-year-long period from 2002 to 2019 using parental education as the indicator of socioeconomic position. Methods: The study used data on full breastfeeding collected between 2002 and 2019 by community health nurses in the collaboration Child Health Database, n=143,075. Data were linked with five categories of parental education from population registers. Social inequality was calculated as both the relative (odds ratio) and absolute social inequality (slope index of inequality). A trend test was conducted to assess changes in social inequality over time. Results: A social gradient in full breastfeeding was found for the entire study period. The odds ratio for not being fully breastfed for at least 4 months ranged from 3.30 (95% confidence interval 2.83–3.84) to 5.09 (95% confidence interval 4.28–6.06) during the study period for infants of parents with the lowest level of education (primary school) compared with infants of parents with the highest level of education (5+ years of university education). The slope index of inequality was between −38.86 and −48.81 during the entire study period, P=0.80. This indicated that both the relative and absolute social inequality in full breastfeeding to at least 4 months of age was unchanged in the study period from 2002 to 2019. Conclusions: This study showed a persistent relative and absolute social inequality in full breastfeeding for at least 4 months from 2002 to 2019 in Denmark.

Funder

Novo Nordisk Fonden

Publisher

SAGE Publications

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