Comparison of Self-reported and Measured Pre-pregnancy Weight: Implications for Gestational Weight Gain Counseling.
Objectives To examine clinical and demographic characteristics associated with availability of self-reported and measured pre-pregnancy weight, differences in these parameters, and characteristics associated with self-report accuracy. Methods Retrospective cohort of 7483 women who delivered at a large academic medical center between 2011 and 2014. Measured pre-pregnancy weights recorded within a year of conception and self-reported pre-pregnancy weights reported anytime during pregnancy were abstracted from electronic medical records. Difference in weights was calculated as self-reported minus measured pre-pregnancy weight. Logistic and linear regression models estimated associations between demographic and clinical characteristics, and presence of self-reported and measured weights, and weight differences. Results 42.2% of women had both self-reported and measured pre-pregnancy weight, 49.7% had only self-reported, and 2.8% had only measured. Compared to white women, black women and women of other races/ethnicities were less likely to have self-reported weight, and black, Asian, and Hispanic women, and women of other races/ethnicities were less likely to have measured weights. For 85%, pre-pregnancy BMI categorized by self-reported and measured weights were concordant. Primiparas and multiparas were more likely to underreport their weight compared to nulliparas (b = -1.32 lbs, 95% CI -2.24 to -0.41 lbs and b = -2.74 lbs, 95% CI -3.82 to -1.67 lbs, respectively). Discussion Utilization of self-reported or measured pre-pregnancy weight for pre-pregnancy BMI classification results in identical categorization for the majority of women. Providers may wish to account for underreporting for patients with a BMI close to category cutoff by recommending a range of gestational weight gain that falls within recommendations for both categories where feasible.
Division of Research, Department of Obstetrics and Gynecology, University of Massachusetts Medical School, 119 Belmont Street, Jaquith Building, Worcester, MA, 01605, USA.
Annika L
AL
Bannon
Division of Research, Department of Obstetrics and Gynecology, University of Massachusetts Medical School, 119 Belmont Street, Jaquith Building, Worcester, MA, 01605, USA.|Department of Quantitative Health Sciences, University of Massachusetts Medical School, 55 Lake Avenue North, ACCES7, Worcester, MA, 01605, USA.
Molly E
ME
Waring
Division of Research, Department of Obstetrics and Gynecology, University of Massachusetts Medical School, 119 Belmont Street, Jaquith Building, Worcester, MA, 01605, USA.
Katherine
K
Leung
Division of Research, Department of Obstetrics and Gynecology, University of Massachusetts Medical School, 119 Belmont Street, Jaquith Building, Worcester, MA, 01605, USA.
Jessica V
JV
Masiero
Division of Research, Department of Obstetrics and Gynecology, University of Massachusetts Medical School, 119 Belmont Street, Jaquith Building, Worcester, MA, 01605, USA.|Department of Obstetrics & Gynecology, University of Connecticut School of Medicine, 263 Farmington Avenue, Farmington, CT, USA.
Julie M
JM
Stone
Division of Research, Department of Obstetrics and Gynecology, University of Massachusetts Medical School, 119 Belmont Street, Jaquith Building, Worcester, MA, 01605, USA.|Department of Obstetrics & Gynecology, Mount Sinai Beth Israel, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
Elizabeth C
EC
Scannell
Division of Research, Department of Obstetrics and Gynecology, University of Massachusetts Medical School, 119 Belmont Street, Jaquith Building, Worcester, MA, 01605, USA. tiffanya.mooresimas@umassmemorial.org.|Department of Pediatrics, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA, 01605, USA. tiffanya.mooresimas@umassmemorial.org.|Department of Obstetrics and Gynecology, University of Massachusetts Medical School, UMass Memorial Health Care, 119 Belmont Street, Jaquith Building Floor 2, Worcester, MA, 01605, USA. tiffanya.mooresimas@umassmemorial.org.
Tiffany A
TA
Moore Simas
D000328:Adult; D044466:Asian People; D015992:Body Mass Index; D001835:Body Weight; D003376:Counseling; D005260:Female; D006630:Hispanic or Latino; D006801:Humans; D008404:Massachusetts; D011247:Pregnancy; D011248:Pregnancy Complications / Q000453:epidemiology*; D011256:Pregnancy Outcome; D011295:Prenatal Care / Q000379:methods*; D012189:Retrospective Studies; D012307:Risk Factors; D057566:Self Report; D015430:Weight Gain; D044465:White People
Pre-pregnancy BMI; Prenatal care; Self-reported weight