A preliminary study of active compared with passive imputation of missing body mass index values among non-Hispanic white youths

Simple item page
dc.contributor.authorWagstaff, David A.en_US
dc.contributor.authorKranz, Sibylleen_US
dc.date.accessioned2011-04-28T18:08:23Zen_US
dc.date.accessioned2011-05-16T23:17:49Z
dc.date.available2011-04-28T18:08:23Zen_US
dc.date.available2011-05-16T23:17:49Z
dc.date.issued2009-04en_US
dc.description.abstractBackground: Addressing missing data on body weight, height, or both is a challenge many researchers face. In calculating the body mass index (BMI) of study participants, researchers need to impute the missing data. Objective: A multiple imputation through a chained equations approach was used to determine whether one should first impute the missing anthropometric data and then calculate BMI or use an imputation model to obtain BMI. Design: The present study used computer simulation to address the question of how to calculate BMI when there is missing data on weight and height. The simulated data reflected data gathered on non-Hispanic white youths (n ¼ 905) aged 2–18 y, who participated in the 1999–2000 National Health and Nutrition Examination Survey (NHANES). Results: The simulation indicated that it made little difference in the accuracy with which the youths’ mean BMIs were estimated when the data were missing completely at random. However, the use of a model to impute BMI was favored slightly when the data were missing at random and the imputation model included the variable used to determine missingness. Conclusion: The present findings extend the use of passive imputation and the use of multiple imputation through a chained equations approach to an area of critical public health importance. Am J Clin Nutr 2009;89:1025–30. Originally published American Journal of Clinical Nutrition, Vol. 89, No. 4, Apr 2009en_US
dc.identifier.citationAmerican Journal of Clinical Nutrition; 89:4 p. 1025-1030en_US
dc.identifier.pmidPMC2667453en_US
dc.identifier.urihttp://hdl.handle.net/10342/3411en_US
dc.language.isoen_USen_US
dc.publisherEast Carolina Universityen_US
dc.relation.urihttp://www.ajcn.org/content/89/4/1025en_US
dc.rightsAuthor notified of opt-out rights by Cammie Jennings prior to upload of this article.en_US
dc.subjectBody mass indexen_US
dc.subjectMissing valuesen_US
dc.subjectImputationen_US
dc.titleA preliminary study of active compared with passive imputation of missing body mass index values among non-Hispanic white youthsen_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Preliminary study active compared with passive.pdf
Size:
76.75 KB
Format:
Adobe Portable Document Format
Download

Collections

Nutrition Science