If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
[Research article] Breastfeeding and Overweight Kids
PEDIATRICS Vol. 113 No. 2 February 2004, pp. e81-e86
-------------------------------------------------------------------------- ELECTRONIC ARTICLE Does Breastfeeding Protect Against Pediatric Overweight? Analysis of Longitudinal Data From the Centers for Disease Control and Prevention Pediatric Nutrition Surveillance System Laurence M. Grummer-Strawn, PhD and Zuguo Mei, MD From the Maternal and Child Nutrition Branch, Division of Nutrition and Physical Activity, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia Objective. To examine whether increasing duration of breastfeeding is associated with a lower risk of overweight in a low-income population of 4-year-olds in the United States. Methods. Visit data were linked to determine prospectively the duration of breastfeeding (up to 2 years of age) and weight status at 4 years of age. Overweight among 4-year-old children was defined as a body mass index (BMI)-for-age at or above the 95th percentile based on the 2000 Centers for Disease Control and Prevention growth charts. Logistic regression was performed, controlling for gender, race/ethnicity, and birth weight. In a subset of states, links to maternal pregnancy records also permitted regression analysis controlling for mother's age, education, prepregnancy BMI, weight gain during pregnancy, and postpartum smoking. Data from the Pediatric Nutrition Surveillance System, which extracts breastfeeding, height, and weight data from child visits to public health programs, were analyzed. In 7 states, data were linked to Pregnancy Nutrition Surveillance System data. A total of 177 304 children up to 60 months of age were included in our final pediatric-only analysis, and 12 587 were included in the pregnancy-pediatric linked analysis. Results. The duration of breastfeeding showed a dose-response, protective relationship with the risk of overweight only among non-Hispanic whites; no significant association was found among non-Hispanic blacks or Hispanics. Among non-Hispanic whites, the adjusted odds ratio of overweight by breastfeeding for 6 to 12 months versus never breastfeeding was 0.70 (95% confidence interval: 0.50-0.99) and for 12 months versus never was 0.49 (95% confidence interval: 0.25-0.95). Breastfeeding for any duration was also protective against underweight (BMI-for-age below the 5th percentile). Conclusion. Prolonged breastfeeding is associated with a reduced risk of overweight among non-Hispanic white children. Breastfeeding longer than 6 months provides health benefits to children well beyond the period of breastfeeding. |
#2
|
|||
|
|||
[Research article] Breastfeeding and Overweight Kids
Robin T. wrote: PEDIATRICS Vol. 113 No. 2 February 2004, pp. e81-e86 [...] Conclusion. Prolonged breastfeeding is associated with a reduced risk of overweight among non-Hispanic white children. Breastfeeding longer than 6 months provides health benefits to children well beyond the period of breastfeeding. It's somewhat surprising that they should have found differences among ethnic groups. I'd be really surprised if the differences had biological foundations. I wonder if there would be a way to design a study that also controlled for other feeding practices/ if studies have looked into differences across ethnic and socio-economic groups in the way children are fed outside of bf/ff (understanding of course that it's all averages ... individuals in any one group don't necessarily follow the group norms). Likewise I guess that TV and overall activity levels would be relevant factors. -- Emily mom to Toby 5/1/02 #2 EDD 7/19/04 |
#3
|
|||
|
|||
[Research article] Breastfeeding and Overweight Kids
Results. The duration of breastfeeding showed a dose-response, protective relationship with the risk of overweight only among non-Hispanic whites; no significant association was found among non-Hispanic blacks or Hispanics. Among non-Hispanic whites, the adjusted odds ratio of overweight by breastfeeding for 6 to 12 months versus never breastfeeding was 0.70 (95% confidence interval: 0.50-0.99) and for 12 months versus never was 0.49 (95% confidence interval: 0.25-0.95). Breastfeeding for any duration was also protective against underweight (BMI-for-age below the 5th percentile). Interesting. I am very pro-breastfeeding and know it does lots of good things for kids. Nonetheless, I suspect that once really good studies are done they won't be able to show that it prevents overweight. The confidence intervals even for white children barely reach statistical significance (if a confidence interval includes 1.0, it means the finding is not significant). It doesn't make much biological sense that this would vary between races. And most importantly, these types of studies can't really control for all the confounding factors that differentiate moms who breastfeed from moms who formula feed. Kate and the Bug, 8 months |
#4
|
|||
|
|||
[Research article] Breastfeeding and Overweight Kids
Emily wrote in message news:4c9Zb.14820$Xp.77529@attbi_s54...
Robin T. wrote: PEDIATRICS Vol. 113 No. 2 February 2004, pp. e81-e86 [...] Conclusion. Prolonged breastfeeding is associated with a reduced risk of overweight among non-Hispanic white children. Breastfeeding longer than 6 months provides health benefits to children well beyond the period of breastfeeding. It's somewhat surprising that they should have found differences among ethnic groups. I'd be really surprised if the differences had biological foundations. I wonder if there would be a way to design a study that also controlled for other feeding practices/ if studies have looked into differences across ethnic and socio-economic groups in the way children are fed outside of bf/ff (understanding of course that it's all averages ... individuals in any one group don't necessarily follow the group norms). Likewise I guess that TV and overall activity levels would be relevant factors. I don't think it's that surprising. I've read that hispanic and black adults have higher occurences of metabolic syndrome (insulin resistance, upper body obesity, dislipidemia, etc.), so perhaps their children do too despite being breastfed. Metabolic syndrome tends to produce infertile females (PCOS) if there is sufficient amounts of food available to induce obesity, and I think Europeans have had larger food stores for longer than blacks and hispanics, and so have evolved to have fewer people with metaboic syndrome. KC |
#5
|
|||
|
|||
[Research article] Breastfeeding and Overweight Kids
KC wrote:
I don't think it's that surprising. I've read that hispanic and black adults have higher occurences of metabolic syndrome (insulin resistance, upper body obesity, dislipidemia, etc.), so perhaps their children do too despite being breastfed. Metabolic syndrome tends to produce infertile females (PCOS) if there is sufficient amounts of food available to induce obesity, and I think Europeans have had larger food stores for longer than blacks and hispanics, and so have evolved to have fewer people with metaboic syndrome. KC But is that biological or culturally mediated? I keep reading in other contexts that there is no biological foundation for the concept of race. (Which isn't the same thing as saying that certain genetic issues aren't more common in some populations than others, I suppose.) -- Emily mom to Toby 5/1/02 #2 EDD 7/19/04 |
Thread Tools | |
Display Modes | |
|
|