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Protocol - Maximum Adult Weight

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Description:

The protocol contains an interview question asking the study participant to recall his or her maximum adult weight.

Protocol:

The following protocol is part of a computerized interview. This may also be used in a non- computerized format. In addition, this could be used as a personal interview or self-administered format. What is the most {you have/[participant]* has} ever weighed? [Do not include any times when {you were/she was} pregnant.]

Note to interviewer: ENTER WEIGHT IN POUNDS OR KILOGRAMS

CAPI INSTRUCTION: DISPLAY OPTIONAL SENTENCE {Do not include . . .} ONLY IF SP IS FEMALE.
|___|___|___| ENTER NUMBER OF POUNDS

CAPI INSTRUCTION: SOFT EDIT 75-500, HARD EDIT 50-750
OR |___|___|___| ENTER NUMBER OF KILOGRAMS

CAPI INSTRUCTION: SOFT EDIT 34-225, HARD EDIT 23-338
OR

[ ] 7777 REFUSED (END OF SECTION)

[ ] 9999 DON’T KNOW (END OF SECTION)

How old {were you/was [participant]*} then? [If you don’t know {your/his/her} exact age, please make your best guess.]

Note to interviewer: ENTER AGE IN YEARS

|___|___|___| ENTER AGE IN YEARS

[ ] 7777 REFUSED (END OF SECTION)

[ ] 9999 DON’T KNOW (END OF SECTION)

*When the question is being asked of a proxy respondent, insert the participant’s name here.

Protocol Name from Source:

2007-2008 National Health and Nutrition Examination Survey (NHANES) Weight History Questionnaire

Availability:

Publicly available

Personnel and Training Required

The trained interviewer should be able to administer a questionnaire and be able to probe for information as necessary.

Equipment Needs

None

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

Interviewer-administered questionnaire

Life Stage:

Adult, Senior

Participants:

Participant older than 18 years

Specific Instructions:

Participants are told to report, to the best of their ability, their maximum adult weight in pounds or kilograms. For women, specify that the weight should not be reported for times that they were pregnant.

Selection Rationale

The National Health and Nutrition Examination Survey 2007-2008 protocols were selected as best practice methodology and are some of the most widely used protocols to assess weight. The studies from which these protocols are derived provide a valid national comparator database.

Language

English

Standards
StandardNameIDSource
Common Data Elements (CDE) Person Maximum Adult Weight Value 2793282 CDE Browser
Logical Observation Identifiers Names and Codes (LOINC) Max adult wt proto 62411-4 LOINC
Derived Variables

None

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. (2007). National Health and Nutrition Examination Survey (NHANES) 2007-2008 Questionnaire. WEIGHT HISTORY - WHQ. Hyattsville, MD: U.S. Department of Health and Human Services, Centers for Disease Control and Prevention. Questions WHQ.147 L/K and WHQ 150.

General References

None

Protocol ID:

21001

Variables:
Export Variables
Variable NameVariable IDVariable DescriptionVersiondbGaP Mapping
PX021001_Maximum_Weight_Age PX021001020000 How old {were you/was [participant]} then? [If you don't know {your/his/her} exact age, please make your best guess.] 4 Variable Mapping
PX021001_Maximum_Weight_Age_Coded PX021001020100 How old {were you/was [participant]} then? [If you don't know {your/his/her} exact age, please make your best guess.] 4 N/A
PX021001_Maximum_Weight_Coded PX021001010300 [IF STUDY PARTICIPANT IS MALE] What is the most {you have/[participant] has} ever weighed? [IF STUDY PARTICIPANT IS FEMALE] What is the most {you have/[participant] has} ever weighed? Do not include any times when {you were/she was} pregnant. 4 N/A
PX021001_Maximum_Weight_Kgs PX021001010100 [IF STUDY PARTICIPANT IS MALE] What is the most {you have/[participant] has} ever weighed? [IF STUDY PARTICIPANT IS FEMALE] What is the most {you have/[participant] has} ever weighed? Do not include any times when {you were/she was} pregnant. 4 Variable Mapping
PX021001_Maximum_Weight_Pounds PX021001010200 [IF STUDY PARTICIPANT IS MALE] What is the most {you have/[participant] has} ever weighed? [IF STUDY PARTICIPANT IS FEMALE] What is the most {you have/[participant] has} ever weighed? Do not include any times when {you were/she was} pregnant. 4 Variable Mapping
PX021001_Maximum_Weight_Proxy_Name PX021001030000 When the question is being asked of a proxy respondent, insert the participant's name here 4 N/A
Research Domain Information
Measure Name:

Maximum Adult Weight

Release Date:

October 1, 2015

Definition

Self-reported maximum adult weight of participant

Purpose

Maximum adult weight is correlated with assessments of an individual’s body mass index, currently and over time, and is related to overall health status.

Keywords

Anthropometrics, body mass index, BMI, obesity, NHANES