Department of Biostatistics, School of Public Health and Institute of Public Health Research, Tehran University/Medical Sciences, Tehran, Iran.
Int Breastfeed J. 2010 Jan 27;5:1. doi: 10.1186/1746-4358-5-1.
In this exploratory study, the contribution of delivery type to the weight gain pattern for full-term infants with exclusive breastfeeding in the first month of infancy was determined. In addition, breastfeeding success among cesarean section (C-section) delivery mothers based on their neonate's weight gain at the end of the first month of infancy was evaluated.
A cohort of 92 neonates born in Shiraz, from July 10 to August 10, 2007 was followed longitudinally. The data were collected during the first month postpartum at three occasions: 3 to 7 days postpartum, 10-21 days postpartum and 24-31 days postpartum.
Among 92 mothers in this study, 35 (38%) were delivered by C-section. Generalized estimating equation (GEE) showed that delivery type (p < 0.01), receipt of advice about breastfeeding (p = 0.03) and neonate's age (p < 0.01) significantly affected weight gain. GEE estimated the values of the parameters under study and the testing contribution of each factor to weight gain, leading to the conclusion that gender, parities and maternal education did not contribute to weight gain. The neonate's weight gain pattern for C-section deliveries lies below that of normal vaginal deliveries until 25 days postpartum, when weight gain for C-section deliveries became higher than that for normal vaginal deliveries.
Type of delivery contributes strongly to the weight gain pattern in the first month of infancy. In spite of greater weight loss among C-section birth neonates in the first days of life, at the end of the first month neonates showed a similar weight gain. Consequently, mothers with C-section delivery can successfully exclusively breastfeed.
在这项探索性研究中，确定了分娩方式对纯母乳喂养足月婴儿在出生后第一个月增重模式的影响。此外，还评估了基于新生儿在出生后第一个月结束时的体重增加情况，剖宫产（C -section）分娩母亲的母乳喂养成功率。
对 2007 年 7 月 10 日至 8 月 10 日在设拉子出生的 92 名新生儿进行了纵向队列研究。数据在产后第一个月的三个时间点收集：产后 3-7 天、10-21 天和 24-31 天。
在本研究的 92 位母亲中，有 35 位（38%）为剖宫产分娩。广义估计方程（GEE）显示，分娩方式（p<0.01）、接受母乳喂养建议（p=0.03）和新生儿年龄（p<0.01）显著影响体重增加。GEE 估计了研究参数的值，并检验了每个因素对体重增加的贡献，得出的结论是，性别、胎次和母亲教育对体重增加没有贡献。剖宫产新生儿的体重增加模式在出生后 25 天之前低于正常阴道分娩，此时剖宫产新生儿的体重增加高于正常阴道分娩。
分娩方式强烈影响婴儿出生后第一个月的增重模式。尽管剖宫产出生的新生儿在生命的最初几天体重下降较多，但在第一个月结束时，新生儿的体重增加相似。因此，剖宫产分娩的母亲可以成功进行纯母乳喂养。
