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Protocol - Total Pregnancy Weight Gain - Weight Measured During Gestation

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Description:

There are several research contexts in which this information could be collected, and how the information is collected will vary depending on the context and availability of related information.

Weight gain during pregnancy is commonly monitored as a part of prenatal care. Total weight gain is calculated at the end of pregnancy using a self-reported pre-pregnancy weight and weight measured at the last prenatal visit before delivery (usually within 1 week of delivery). The information to be collected would be (1) weight measured at final prenatal visit (to the nearest 100 g, e.g., 59.1 kg); (2) date of final visit; (3) pre-pregnancy weight; (4) height; (5) gestational age at final visit; and (6) gestational age at delivery. If the opportunity exists to collect the gestational weight prospectively as part of the research protocol, this is preferred because weights taken using a research protocol are better standardized for amount of participant clothing and scales are regularly calibrated. See Measured Weight protocol regarding the measurement of weight, and record weight to the nearest 100 g. Data to be collected are (1) weight during pregnancy; (2) date on which the weight is taken; (3) gestational age when measurement taken; (4) pre-pregnancy weight; (5) height; and (6) gestational age at delivery.

Protocol:

Weights Measured during Gestation (Research Protocol)

Gestational ages, date of initial examination, and pre-pregnancy weight and height are abstracted from medical records, as described in the protocol for abstraction from prenatal charts.

Final weight in pregnancy is measured at prenatal or research visits using a research protocol (see Measured Weight).

Protocol Name from Source:

ACOG Antenatal Form B and C

Availability:

Publicly available

Personnel and Training Required

For the aspects of the measures requiring chart review, the abstracter should be trained in medical terminology and records review; for measuring weights, the examiner should be trained as for 021501 Measured Weight. If measure is conducted by computer-assisted personal interviewing (CAPI), interviewer trained in CAPI administration is required; otherwise, no training is required for the paper-and-pencil interviewing (PAPI).

Equipment Needs

Computer (for computer-assisted personal interviewing [CAPI]), paper-and-pencil (for paper-and-pencil interviewing [PAPI]).

Requirements
Requirement CategoryRequired
Major equipment No
Specialized training No
Specialized requirements for biospecimen collection No
Average time of greater than 15 minutes in an unaffected individual No
Mode of Administration

Medical record abstraction

Life Stage:

Pregnancy

Participants:

Women who have had a pregnancy (20 weeks or longer) or are currently pregnant.

Specific Instructions:

None

Selection Rationale

Weight gain in pregnancy is associated with pregnancy outcomes, and there are recommended ranges of total weight gain depending on pre-pregnancy body mass index (BMI). Women whose total gain is outside these recommendations (too low or too high) are at increased risk of delivering a low and high birth weight (i.e., small-for-gestational age [SGA] and large-for-gestational age [LGA] newborns), respectively. Risk for preeclampsia, gestational diabetes, and cesarean delivery are influenced by weight gain. Excess maternal weight gain during pregnancy, especially among those women who were normal weight before pregnancy, has also been independently associated with risk of overweight and obesity in the offspring.

Language

English

Standards
StandardNameIDSource
Common Data Elements (CDE) Person Measured Total Pregnancy Weight Gain Weight Value 5021298 CDE Browser
Process and Review

The Expert Review Panel #1 reviewed the measures in the Anthropometrics, Diabetes, Physical Activity and Physical Fitness, and Nutrition and Dietary Supplements domains.

Guidance from the ERP includes:

a. Changed name of measure

b. Added a new protocol

c. New Data Dictionary

Source

Protocol for chart abstraction:

American Congress of Obstetricians and Gynecologists (ACOG). (2014). Antenatal Record Forms B and C. Washington, DC: Author.

General References

Institute of Medicine, Committee to Reexamine IOM Pregnancy Weight Guidelines. (2009). Weight gain during pregnancy: Reexamining the guidelines. K. M. Rasmussen & A. L. Yaktine (Eds.). Washington, DC: National Academy Press.

Rasmussen, K. M., Catalano, P. M., & Yaktine, A. L. (2009). New guidelines for weight gain during pregnancy: What obstetrician/gynecologists should know. Current Opinion in Obstetrics and Gynecology, 21, 521-526.

Protocol ID:

21303

Variables:
Export Variables
Variable NameVariable IDVariable DescriptionVersiondbGaP Mapping
PX021303_TotalWeight_DuringGestation_Date_Visit_1 PX021303020100 What is today's date of examination? 4 N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_10 PX021303110100 What is today's date of examination? 4 N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_2 PX021303030100 What is today's date of examination? 4 N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_3 PX021303040100 What is today's date of examination? 4 N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_4 PX021303050100 What is today's date of examination? 4 N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_5 PX021303060100 What is today's date of examination? 4 N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_6 PX021303070100 What is today's date of examination? 4 N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_7 PX021303080100 What is today's date of examination? 4 N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_8 PX021303090100 What is today's date of examination? 4 N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_9 PX021303100100 What is today's date of examination? 4 N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_1 PX021303020200 What is the patient's current gestational age? 4 N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_10 PX021303110200 What is the patient's current gestational age? 4 N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_2 PX021303030200 What is the patient's current gestational age? 4 N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_3 PX021303040200 What is the patient's current gestational age? 4 N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_4 PX021303050200 What is the patient's current gestational age? 4 N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_5 PX021303060200 What is the patient's current gestational age? 4 N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_6 PX021303070200 What is the patient's current gestational age? 4 N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_7 PX021303080200 What is the patient's current gestational age? 4 N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_8 PX021303090200 What is the patient's current gestational age? 4 N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_9 PX021303100200 What is the patient's current gestational age? 4 N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_1 PX021303020400 What is the patient's current height? 4 N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_10 PX021303110400 What is the patient's current height? 4 N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_2 PX021303030400 What is the patient's current height? 4 N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_3 PX021303040400 What is the patient's current height? 4 N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_4 PX021303050400 What is the patient's current height? 4 N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_5 PX021303060400 What is the patient's current height? 4 N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_6 PX021303070400 What is the patient's current height? 4 N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_7 PX021303080400 What is the patient's current height? 4 N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_8 PX021303090400 What is the patient's current height? 4 N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_9 PX021303100400 What is the patient's current height? 4 N/A
PX021303_TotalWeight_DuringGestation_InitialExamination_Date PX021303010100 What is the date of initial examination? 4 N/A
PX021303_TotalWeight_DuringGestation_InitialExamination_Gestational_Age PX021303010200 What ist he patient's gestational age at initial examination? 4 N/A
PX021303_TotalWeight_DuringGestation_InitialExamination_Height PX021303010400 What is the patient's height? 4 N/A
PX021303_TotalWeight_DuringGestation_InitialExamination_Weight PX021303010300 What is the patient's pre-pregnancy weight to the nearest 100g? 4 N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_1 PX021303020300 What is the patient's current weight to the nearest 100g? 4 N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_10 PX021303110300 What is the patient's current weight to the nearest 100g? 4 N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_2 PX021303030300 What is the patient's current weight to the nearest 100g? 4 N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_3 PX021303040300 What is the patient's current weight to the nearest 100g? 4 N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_4 PX021303050300 What is the patient's current weight to the nearest 100g? 4 N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_5 PX021303060300 What is the patient's current weight to the nearest 100g? 4 N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_6 PX021303070300 What is the patient's current weight to the nearest 100g? 4 N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_7 PX021303080300 What is the patient's current weight to the nearest 100g? 4 N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_8 PX021303090300 What is the patient's current weight to the nearest 100g? 4 N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_9 PX021303100300 What is the patient's current weight to the nearest 100g? 4 N/A
Research Domain Information
Measure Name:

Total Pregnancy Weight Gain

Release Date:

October 1, 2015

Definition

Total change in weight of the participant over the course of pregnancy for the most recent pregnancy.

Purpose

The total pregnancy weight measure is used to assess the individual’s gestational weight gain in the current or past pregnancy and/or evaluate total weight gain with respect to recommendations for total weight gain based on pre-pregnancy body mass index (BMI, kg/m2).

Keywords

Anthropometrics, weight, body mass index (BMI), gestational diabetes, birth weight, PRAMS