title: Is obesity still increasing among pregnant women? Prepregnancy obesity trends in 20 states, 2003-2009.
abstract: OBJECTIVE
  To estimate trends in prepregnancy obesity prevalence among women who delivered live births in the US during 2003-2009, by state, age, and race-ethnicity.
  
  
  METHODS
  We used Pregnancy Risk Assessment Monitoring System (PRAMS) data from 2003, 2006, and 2009 to measure prepregnancy obesity (body mass index [BMI]≥30kg/m(2)) trends in 20 states. Trend analysis included 90,774 records from 20 US states with data for all 3 study years. We used a chi-square test for trend to determine the significance of actual and standardized trends, standardized to the age and race-ethnicity distribution of the 2003 sample.
  
  
  RESULTS
  Prepregnancy obesity prevalence increased by an average of 0.5 percentage points per year, from 17.6% in 2003 to 20.5% in 2009 (P<0.001). Obesity increased among women aged 20-24 (P<0.001), 30-34 (P=0.001) and 35 years or older (P=0.003), and among non-Hispanic white (P<.001), non-Hispanic black (P=0.02), Hispanic (P=0.01), and other women (P=0.03).
  
  
  CONCLUSIONS
  Overall, prepregnancy obesity prevalence continues to increase and varies by race-ethnicity and maternal age. These findings highlight the need to address obesity as a key component of preconception care, particularly among high-risk groups.
authors: Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, 4770 Buford Hwy, NE, MS K-23, Atlanta, GA 30341, USA.
authors: S C
authors: SC
authors: Fisher
authors: S Y
authors: SY
authors: Kim
authors: A J
authors: AJ
authors: Sharma
authors: R
authors: R
authors: Rochat
authors: B
authors: B
authors: Morrow
mesh_terms: D000328:Adult; D000367:Age Factors; D005260:Female; D006801:Humans; D009765:Obesity / Q000453:epidemiology* / Q000208:ethnology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology* / Q000208:ethnology; D018570:Risk Assessment; D014481:United States / Q000453:epidemiology; D055815:Young Adult