Factors Associated with Infant Feeding Methods after the Nuclear Power Plant Accident in Fukushima: Data from the Pregna
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Factors Associated with Infant Feeding Methods after the Nuclear Power Plant Accident in Fukushima: Data from the Pregnancy and Birth Survey for the Fiscal Year 2011 Fukushima Health Management Survey Kayoko Ishii1 • Aya Goto1,2 • Misao Ota1,3 • Seiji Yasumura2 • Masafumi Abe1 • Keiya Fujimori1,4 • Pregnancy and Birth Survey Group of the Fukushima Health Management Survey
Ó The Author(s) 2016. This article is published with open access at Springerlink.com
Abstract Objectives The objective of this study was to assess the frequency of and factors associated with infant feeding methods after the Fukushima nuclear power plant accident using data from the Fukushima Health Management Survey. Methods We conducted an anonymous selfadministered questionnaire survey of 16,001 women who gave birth around the time of the Great East Japan Earthquake and registered their pregnancies at Fukushima Prefecture municipal offices between August 1, 2010 and July 31, 2011. The responses of 8366 women were analyzed. Chi square tests and multiple logistic regression analysis were used to compare various factors between women who had formula-fed their children because of concern regarding radioactive contamination or other reasons and those who had breastfed exclusively. Results The percentage of women who had breastfed exclusively was 30.9 %. The percentage of women who had both breastfed and formulafed or formula-fed exclusively was 69.1 %, of which 20.3 % formula-fed because of concern regarding radioactive contamination of breast milk. The use of for-
& Kayoko Ishii [email protected] 1
Radiation Medical Science Center for the Fukushima Health Management Survey, Fukushima Medical University, 1 Hikarigaoka, Fukushima City, Fukushima Prefecture 960-1295, Japan
2
Department of Public Health, Fukushima Medical University, Fukushima, Japan
3
Department of Midwifery and Maternal Nursing, Fukushima Medical University, Fukushima, Japan
4
Department of Obstetrics and Gynecology, Fukushima Medical University, Fukushima, Japan
mula feeding because of concern about radioactive contamination was significantly higher in women who had resided within the evacuation area and those whose regular antenatal care had been interrupted. The use of formula feeding for other reasons was significantly higher in women who had resided within the evacuation area and lower for those who had willingly switched to another medical institution. Conclusions for Practice Our results suggest the importance of providing breastfeeding support to women who are forced to evacuate or whose antenatal care is interrupted after a disaster. Keywords Formula feeding Breastfeeding Infant feeding methods Disaster Fukushima nuclear accident
Significance Many previous studies have identified factors associated with infant feeding methods. However, few studies have investigated the factors, including concern regarding radioactive contamination of breast milk, that influence infant feeding methods after a nuclear accident. Our study revealed that the use of formula fee
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