American Journal of Obstetrics & Gynecology
Volume 201, Issue 1 , Pages 53.e1-53.e7, July 2009

Low pregnancy weight gain and small for gestational age: a comparison of the association using 3 different measures of small for gestational age

Presented at a meeting for the Institute of Medicine's Committee to Reexamine the IOM Pregnancy Weight Gain Guidelines, Washington, DC, June 5, 2008.

  • Patricia M. Dietz, DrPH, MPH

      Affiliations

    • Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA
    • ,
  • William M. Callaghan, MD, MPH

      Affiliations

    • Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA
    • ,
  • Ruben Smith, PhD

      Affiliations

    • Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA
    • ,
  • Andrea J. Sharma, PhD, MPH

      Affiliations

    • Division of Nutrition, Physical Activity, and Obesity, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, GA

Received 14 November 2008; received in revised form 26 February 2009; accepted 22 April 2009.

Objective

The purpose of this study was to assess associations between pregnancy weight gain (PWG) and small for gestational age (SGA) defined by birthweight < 10th percentile and 2 more restrictive definitions and to assess the proportion of SGA attributed to low PWG.

Study Design

This was a retrospective cohort study of 104,980 singleton, term births from the 2000-2005 Pregnancy Risk Assessment Monitoring System (PRAMS).

Results

Compared with women who gained 15-25 lbs during pregnancy, women who gained 1-14 lbs had 1.5 greater odds (95% confidence interval, 1.2-1.8) of SGA for the most restrictive definition and 1.2 greater odds (95% confidence interval, 1.1-1.4) for the least restrictive definition, after adjustments for confounders. Depending upon the definition used, PWG below current Institute of Medicine recommendations contributed to 10-15% of SGA, representing 0.8-1.2% of all singleton term infants.

Conclusion

Associations between low PWG and SGA varied little by definition of SGA and contributed to only a small proportion of term SGA infants.

Key words: low birth weight, weight gain during pregnancy

To access this article, please choose from the options below

Login to an existing account or Register a new account.

  • Purchase this article for 30.00 USD (You must login/register to purchase this article)

    Online access for 24 hours. The PDF version can be downloaded as your permanent record.

  • Subscribe to this title

    Get unlimited online access to this article and all other articles in this title 24/7 for one year.

  • Claim access now

    For current subscribers with Society Membership or Account Number.

  • Visit SciVerse ScienceDirect to see if you have access via your institution.
 

 The findings and conclusions in this article are those of the authors and do not necessarily represent the views of the Centers for Disease Control and Prevention.

 Reprints not available from the authors.

 Cite this article as: Dietz PM, Callaghan WM, Smith R, et al. Low pregnancy weight gain and small for gestational age: a comparison of the association using 3 different measures of small for gestational age. Am J Obstet Gynecol 2009;201:53.e1-7.

PII: S0002-9378(09)00440-2

doi:10.1016/j.ajog.2009.04.045

Refers to article:

  • Articles in full High pregnancy weight gain and risk of excessive fetal growth

    Patricia M. Dietz, William M. Callaghan, Andrea J. Sharma
    American Journal of Obstetrics & Gynecology July 2009 (Vol. 201, Issue 1, Pages 51.e1-51.e6)

American Journal of Obstetrics & Gynecology
Volume 201, Issue 1 , Pages 53.e1-53.e7, July 2009

Article Tools