Protocol - Weight Loss/Gain
- Ethnicity and Race
- Height - Knee Height
- Height - Recumbent Length
- Height - Self-Reported Height
- Height - Standing Height
- Maximum Adult Weight
- Total Pregnancy Weight Gain - Abstracted From Prenatal Charts
- Total Pregnancy Weight Gain - Self-Reported Weight Gain
- Total Pregnancy Weight Gain - Weight Measured During Gestation
Description
The protocol contains a question about the participant’s weight 1 year ago.*
*NOTE: This period can be modified for different periods. Depending on your hypothesis, you may want to modify the time interval as appropriate (e.g., 3 months, 6 months, 1 year).
Specific Instructions
None
Availability
Protocol
The following protocol is part of a computerized interview. This may be used in a noncomputerized format. Also, the protocol may be used in personal and self-administered formats. How much did {you/[participant]*} weigh a year ago†? [If {you were/she was} pregnant a year ago, how much did {you/she} weigh before your pregnancy?]
Note to interviewer: ENTER WEIGHT IN POUNDS OR KILOGRAMS
|___|___|___| 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
777[ ]REFUSED
999[ ]DON’T KNOW
* When the question is being asked of a proxy respondent, insert the participant’s name here. †This time period can be modified for different time periods. Depending on your hypothesis, you may want to modify the time interval as appropriate (e.g., 3 months, 6 months, 1 year).
Note to PhenX User: The National Health and Nutrition Examination Survey (NHANES) does not ask proxy respondents about a child’s weight change. The weight change question for participants under age 16 years comes from Garmey et al. (2008).
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 Category | Required |
|---|---|
| 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
Lifestage
Infant, Toddler, Child, Adolescent, Adult, Senior
Participants
Participants aged 16 years or older or by knowledgeable adult proxy for children younger than 16 years of age
Selection Rationale
This National Health and Nutrition Examination Survey 2007-2008 protocol was selected as best practice methodology and is one of the most widely used protocols to obtain a weight loss/gain measurement. The studies from which these protocols are derived provide a valid national comparator database.
Language
Chinese, English
Standards
| Standard | Name | ID | Source |
|---|---|---|---|
| Logical Observation Identifiers Names and Codes (LOINC) | PhenX - wt loss - gain protocol | 62415-5 | LOINC |
| Human Phenotype Ontology | Weight Loss | HP:0001824 | HPO |
| Human Phenotype Ontology | Decreased Body Weight | HP:0004325 | HPO |
| Human Phenotype Ontology | Abnormality of body weight | HP:0004324 | HPO |
| caDSR Form | PhenX PX021401 - Weight Loss Gain | 5805976 | caDSR Form |
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)
Protocol Name from Source
National Health and Nutrition Examination Survey (NHANES), Weight History Questionnaire, 2007
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. Question #WHQ.053.
General References
Garmey, E. G., Liu, Q., Sklar, C. A., Meacham, L. R., Mertens, A. C., Stovall, M. A., et al. (2008). Longitudinal changes in obesity and body mass index among adult survivors of childhood acute lymphoblastic leukemia: A report from the Childhood Cancer Survivor Study. Journal of Clinical Oncology, 26(28), 4639-4645. doi:10.1200/JCO.2008.16.3527
Protocol ID
21401
Variables
Export Variables| Variable Name | Variable ID | Variable Description | dbGaP Mapping | |
|---|---|---|---|---|
| PX021401_Weight_1Year_Ago_Coded | ||||
| PX021401010300 | How much did {you/[participant]} weigh a year ago? | N/A | ||
| PX021401_Weight_1Year_Ago_Kgs | ||||
| PX021401010100 | How much did {you/[participant]} weigh a year ago? | N/A | ||
| PX021401_Weight_1Year_Ago_Lbs | ||||
| PX021401010200 | How much did {you/[participant]} weigh a year ago? | N/A | ||
| PX021401_Weight_Before_Pregnancy_Coded | ||||
| PX021401020300 | [If {you were/she was} pregnant a year ago, more | N/A | ||
| PX021401_Weight_Before_Pregnancy_Kgs | ||||
| PX021401020100 | [If {you were/she was} pregnant a year ago, more | N/A | ||
| PX021401_Weight_Before_Pregnancy_Lbs | ||||
| PX021401020200 | [If {you were/she was} pregnant a year ago, more | Variable Mapping | ||
| PX021401_Weight_Before_Pregnancy_Proxy_Name | ||||
| PX021401030200 | When the question is being asked of a proxy more | N/A | ||
Measure Name
Weight Loss/Gain
Release Date
March 27, 2009
Definition
Change in weight over the past year
Purpose
This measure is collected to obtain information on an individual’s health status in relation to weight loss or weight gain over the designated time period (e.g., the past year).
Keywords
Anthropometrics, weight, body mass index, BMI, obesity, NHANES, gerontology, aging, geriatrics
Measure Protocols
| Protocol ID | Protocol Name |
|---|---|
| 21401 | Weight Loss/Gain |
Publications
There are no publications listed for this protocol.