모유수유 기간에 따른 수유부의 체중 변화 = Postpartum Weight Change in Lactating Women by Breast-feeding Duration

다국어 초록 (Multilingual Abstract)

Background: Breast-feeding is known to help balanced growth and healthy development of infants as well as positively affect mother’s health by restoring pre-gestational weight, among other numerous benefits. Methods: Food intake and anthropometry data of breast-feeding women who participated in the Special Food Intake Survey for Vulnerable Populations from 2011 through 2013 were used. Out of 1,044 women nursing infants younger than 12 months, 138 obese women (body mass index ≥25.0 based on pre-gestational weight & height) were excluded and data from 906 women with normal body mass index were used for the analysis. Feeding mode, frequency & duration of breast-feeding, height & weight (pre-gestational weight and current weight at the time of survey), and energy intake were analyzed to look into the relationship between change in body weight and progression of breast-feeding. Results: Mean difference between pre-gestational and current body weight of nursing women decreased as breast-feeding progressed (from 6.6±4.2 kg at 0 months to 1.6±2.5 kg at 11 months) with a negative correlation (r=-0.2363, P<0.0001) where the slope of the regression line was -0.4038 (P<0.0001). Conclusion: Breast-feeding may be expected to reduce approximately 0.4 kg of weight per month in nursing mother without any intentional weight control.

국문 초록 (Abstract)

배경: 모유수유는 영아의 건강한 성장과 균형적인 발달에 도움을 줄뿐만 아니라 산모의 건강회복에 긍정적인 영향을 미치는 것으로 알려져 있다. 또한 출산 후 모유수유가 임신 전 체중으로의 회복을 돕는다는 보고도 있다. 이에 본 연구에서는 우리나라 수유부의 모유수유 기간에 따른 출산 후 체중 변화를 분석하여 모유수유와 체중 변화 간의관계를 파악하고자 하였다.
방법: 2011-2013년에 임신부, 수유부 및 영아를 대상으로 수행된 식품섭취량 조사결과 중 수유부의 수유유형과 신장, 체중(임신 전 체중및 조사 당시 체중)에 대한 설문자료와 에너지섭취량조사 자료를 활용하여 모유수유기간에 따른 에너지 섭취량과 체중 변화(조사 당시체중과 임신 전 체중의 차이)를 산출하고 상관관계를 분석하였다. 1세 미만 영아에게 모유 수유 중인 조사대상 1,044명 중에서 임신 전체중과 신장에 근거해 비만(체질량지수 ≥ 25)이었던 대상자 138명을제외한 906명을 대상으로 분석하였다.
결과: 수유부의 모유수유 기간별 현재 체중과 임신 전 체중과의 체중차이는 0개월에서 6.6±4.2 kg이었던 것이 모유수유기간 경과에 따라임신 전 체중과의 차이가 줄어들어 11개월에는 1.6±2.5 kg이었다. 또한 대상자의 모유수유 기간과 임신 전 체중과의 차이를 상관분석한결과 유의적인 음의 상관관계가 나타났으며(r=-0.2363, P<0.0001),회귀분석을 실시한 결과 모유수유 기간의 회귀계수는 -0.4038 (P<0.0001)로 나타났다.
결론: 본 연구의 결과를 종합할 때 모유수유는 수유부의 체중감소에영향을 미치는 것으로 판단되며 모유수유부에서 모유수유에 의해매월 약 0.4 kg 정도의 체중 감소가 진행되는 것으로 추정되었다.

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