Wallby T, Hjern A
Department of Women's and Children's Health, University of Uppsala and Central Child Healthcare Unit, Uppsala Akademiska Hospital, Uppsala, Sweden.
Acta Paediatr. 2009 Nov;98(11):1799-804. doi: 10.1111/j.1651-2227.2009.01455.x. Epub 2009 Sep 3.
To study the relationship between maternal region of birth, disposable income and breastfeeding initiation and duration.
The study population consisted of 12,197 term born, singleton infants, born 1997-2001 in the county of Uppsala. Data on breastfeeding at 1 week, 6 months and 12 months were collected from the register of statistics of the Child Health Care Unit in Uppsala and socioeconomic indicators from Swedish national registers. Multivariate analysis was conducted using Cox regression.
No influence of disposable income or region of birth on breastfeeding initiation was observed. Breastfeeding rates at 6 months were lower for mothers with disposable incomes in quartile 1-3 compared with mothers with the highest incomes in quartile 4 (hazard ratios (HRs) 0.88-0.90, adjusted HRs 0.92). The breastfeeding rates at 12 months were higher for mothers born in all regions compared with mothers born in Sweden (HRs 1.25-2.45, adjusted HRs 1.20-2.14).
The findings in the present study show that disposable income is a strong predictor for breastfeeding at 6 months in the Swedish context. Region of birth of the mother predicted long term breastfeeding, > or =12 months. This calls for professionals in the maternity and child health care to pay extra attention to breastfeeding in low-income mothers in all ethnic groups.
研究母亲的出生地、可支配收入与母乳喂养开始及持续时间之间的关系。
研究人群包括1997 - 2001年在乌普萨拉县出生的12197名足月儿、单胎婴儿。从乌普萨拉儿童保健单位的统计登记册收集1周、6个月和12个月时的母乳喂养数据，并从瑞典国家登记册获取社会经济指标。使用Cox回归进行多变量分析。
未观察到可支配收入或出生地对母乳喂养开始有影响。与收入处于四分位数4中最高收入的母亲相比，收入处于四分位数1 - 3的母亲在6个月时的母乳喂养率较低（风险比（HRs）0.88 - 0.90，调整后HRs 0.92）。与在瑞典出生的母亲相比，所有地区出生的母亲在12个月时的母乳喂养率较高（HRs 1.25 - 2.45，调整后HRs 1.20 - 2.14）。
本研究结果表明，在瑞典背景下，可支配收入是6个月时母乳喂养的有力预测因素。母亲的出生地可预测长期母乳喂养，即≥12个月。这要求母婴保健专业人员特别关注所有种族低收入母亲的母乳喂养情况。
