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Protocol - Total Pregnancy Weight Gain - Self-Reported Weight Gain

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Description:

There are many research contexts in which one could collect this information, and how the information is collected will vary depending on the context.

For self-reported total weight gain during pregnancy, the participant is asked to report the total amount of weight gained during her most recent pregnancy. Other data to be collected at the same time are height, duration of the most recent pregnancy, and the date of the delivery.

Protocol:

Self-reported Gestational Weight Gain

This protocol for pregnancy weight is part of a personal interview. This can also be used in a self-administered format.

For women who are currently at least 20 weeks pregnant, ask the following questions:

1. Just before you got pregnant with your current pregnancy, how much did you weigh?
_______ Pounds OR ______ Kilos

2. How much weight have you gained during this pregnancy?
_______ Pounds OR ______ Kilos

[ ] I LOST weight during my pregnancy

[ ] I don’t know

3. How many weeks pregnant are you currently?
_______ Weeks (Gestational Age)

Editor’s Note: Questions 1 and 2 are modifications of questions from the Pregnancy Risk Assessment Monitoring System (PRAMS) and question 3 is a modification to the Collaborative Perinatal Study.

For women who are not currently pregnant (but parous), ask the following questions:
1. How much did you weigh before your most recent pregnancy?
_______ Pounds OR ______ Kilos

2. How much weight did you gain during your most recent pregnancy?
_______ Pounds OR ______ Kilos

[ ] I LOST weight during my pregnancy

[ ] I don’t know

3. For your most recent pregnancy, how many weeks along were you when you delivered?
_______ Weeks (Gestational Age)

Editor’s Note: Questions 1 and 2 are modifications of questions from PRAMS and question 3 is a modification to the Collaborative Perinatal Study. The phrase "most recent" was added to these questions by the Anthropometrics Working Group. This was done to broaden the context of the question from the PRAMS and Collaborative Perinatal Study populations to a nonspecific study population.

Protocol Name from Source:

Pregnancy Risk Assessment Monitoring System (PRAMS) Phase 5 Topic Reference Questionnaire

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 Measured Weight. If measurement is conducted by computer-assisted personal interview (CAPI), an interviewer trained in CAPI administration is required; otherwise, no training is required for the paper-and-pencil interview (PAPI).

Equipment Needs

Computer (for computer-assisted personal interviews), paper and pencil (for paper-and-pencil interviews)

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

Self-Report

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. Women who gain weight outside these recommendations (too low or too high) are at increased risk of delivering a low and high birth weight (i.e., small and large for gestational age newborns), respectively. Risk for preeclampsia, gestational diabetes, and cesarean delivery are influenced by weight gain. Excess maternal weight gain during pregnancy, especially among women who were at a 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 Pregnancy Gain Weight Value 2793337 CDE Browser
Logical Observation Identifiers Names and Codes (LOINC) Pregnancy wt gain proto 62414-8 LOINC
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:

• Revised descriptions of measure

Back-compatible: no changes to Data Dictionary

Previous version in Toolkit archive (link)

Source

Centers for Disease Control and Prevention, National Center for Health Statistics. (2004-2008). Pregnancy Risk Assessment Monitoring System (PRAMS) Phase 5 Topic Reference Questionnaire, Section 18 (Maternal Nutrition). Hyattsville, MD: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention. Question #State-Developed OK68.

Certification for the Spanish translation can be found here.

General References

Institute of Medicine, Committee to Reexamine IOM Pregnancy Weight Guidelines. (2009, May). In K. M. Rasmussen, & A. L. Yaktine (Eds.), Weight gain during pregnancy: Reexamining the guidelines. 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 & Gynecology, 21, 521-526.

Protocol ID:

21301

Variables:
Export Variables
Variable NameVariable IDVariable DescriptionVersiondbGaP Mapping
PX021301_20Week_Weight_Before_Kgs PX021301010100 For women who are currently at least 20 weeks pregnant, ask the following questions: Just before you got pregnant with your current pregnancy, how much did you weigh? 4 Variable Mapping
PX021301_20Week_Weight_Before_Lbs PX021301010200 For women who are currently at least 20 weeks pregnant, ask the following questions: Just before you got pregnant with your current pregnancy, how much did you weigh? 4 Variable Mapping
PX021301_20Week_Weight_Before_Lbs_Coded PX021301010300 For women who are currently at least 20 weeks pregnant, ask the following questions: Just before you got pregnant with your current pregnancy, how much did you weigh? 4 N/A
PX021301_20Week_Weight_Gained_Coded PX021301020300 For women who are currently at least 20 weeks pregnant, ask the following questions: How much weight have you gained during this pregnancy? 4 N/A
PX021301_20Week_Weight_Gained_Kgs PX021301020100 For women who are currently at least 20 weeks pregnant, ask the following questions: How much weight have you gained during this pregnancy? 4 Variable Mapping
PX021301_20Week_Weight_Gained_Lbs PX021301020200 For women who are currently at least 20 weeks pregnant, ask the following questions: How much weight have you gained during this pregnancy? 4 Variable Mapping
PX021301_Parous_Delivery_Weeks PX021301060000 For women who are not currently pregnant (but parous), ask the following questions: For your most recent pregnancy, how many weeks along were you when you delivered? 4 Variable Mapping
PX021301_Parous_Weight_Before_Kgs PX021301040100 For women who are not currently pregnant (but parous), ask the following questions: How much did you weigh before your most recent pregnancy? 4 N/A
PX021301_Parous_Weight_Before_Lbs PX021301040200 For women who are not currently pregnant (but parous), ask the following questions: How much did you weigh before your most recent pregnancy? 4 N/A
PX021301_Parous_Weight_Gained_Coded PX021301050300 For women who are not currently pregnant (but parous), ask the following questions: How much weight did you gain during your most recent pregnancy? 4 N/A
PX021301_Parous_Weight_Gained_Kgs PX021301050100 For women who are not currently pregnant (but parous), ask the following questions: How much weight did you gain during your most recent pregnancy? 4 Variable Mapping
PX021301_Parous_Weight_Gained_Lbs PX021301050200 For women who are not currently pregnant (but parous), ask the following questions: How much weight did you gain during your most recent pregnancy? 4 Variable Mapping
PX021301_Pregnancy_Weeks PX021301030000 For women who are currently at least 20 weeks pregnant, ask the following questions: How many weeks pregnant are you currently? 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