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Protocol - Total Pregnancy Weight Gain - Weight Measured During Gestation

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Protocol Name from Source:

ACOG Antenatal Form B and C

Availability:

Publicly available

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 [link[www.phenxtoolkit.org/index.php?pageLink=browse.protocoldetails&id=21501|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 [link[www.phenxtoolkit.org/index.php?pageLink=browse.protocoldetails&id=21501|Measured Weight]]).

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
Average time of greater than 15 minutes in an unaffected individualNo
Major equipmentNo
Specialized requirements for biospecimen collectionNo
Specialized trainingNo

Mode of Administration

Self-administered

Life Stage:

Pregnancy

Specific Instructions:

None

Research Domain Information

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).

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 Value5021298CDE Browser

Process and Review

The [link[phenx.org/node/62|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_InitialExamination_DatePX021303010100What is the date of initial examination?4N/A
PX021303_TotalWeight_DuringGestation_InitialExamination_Gestational_AgePX021303010200What ist he patient's gestational age at initial examination?4N/A
PX021303_TotalWeight_DuringGestation_InitialExamination_WeightPX021303010300What is the patient's pre-pregnancy weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_InitialExamination_HeightPX021303010400What is the patient's height?4N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_1PX021303020100What is today's date of examination?4N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_1PX021303020200What is the patient's current gestational age?4N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_1PX021303020300What is the patient's current weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_1PX021303020400What is the patient's current height?4N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_2PX021303030100What is today's date of examination?4N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_2PX021303030200What is the patient's current gestational age?4N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_2PX021303030300What is the patient's current weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_2PX021303030400What is the patient's current height?4N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_3PX021303040100What is today's date of examination?4N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_3PX021303040200What is the patient's current gestational age?4N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_3PX021303040300What is the patient's current weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_3PX021303040400What is the patient's current height?4N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_4PX021303050100What is today's date of examination?4N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_4PX021303050200What is the patient's current gestational age?4N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_4PX021303050300What is the patient's current weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_4PX021303050400What is the patient's current height?4N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_5PX021303060100What is today's date of examination?4N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_5PX021303060200What is the patient's current gestational age?4N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_5PX021303060300What is the patient's current weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_5PX021303060400What is the patient's current height?4N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_6PX021303070100What is today's date of examination?4N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_6PX021303070200What is the patient's current gestational age?4N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_6PX021303070300What is the patient's current weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_6PX021303070400What is the patient's current height?4N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_7PX021303080100What is today's date of examination?4N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_7PX021303080200What is the patient's current gestational age?4N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_7PX021303080300What is the patient's current weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_7PX021303080400What is the patient's current height?4N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_8PX021303090100What is today's date of examination?4N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_8PX021303090200What is the patient's current gestational age?4N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_8PX021303090300What is the patient's current weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_8PX021303090400What is the patient's current height?4N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_9PX021303100100What is today's date of examination?4N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_9PX021303100200What is the patient's current gestational age?4N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_9PX021303100300What is the patient's current weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_9PX021303100400What is the patient's current height?4N/A
PX021303_TotalWeight_DuringGestation_Date_Visit_10PX021303110100What is today's date of examination?4N/A
PX021303_TotalWeight_DuringGestation_GestationalAge_Visit_10PX021303110200What is the patient's current gestational age?4N/A
PX021303_TotalWeight_DuringGestation_Weight_Visit_10PX021303110300What is the patient's current weight to the nearest 100g?4N/A
PX021303_TotalWeight_DuringGestation_Height_Visit_10PX021303110400What is the patient's current height?4N/A