biostudies-literatureWong MCNIDDK NIH HHSNational Institute of Diabetes and Digestive and Kidney DiseasesNHLBI NIH HHSNCI NIH HHSNational Institutes of Health657-671https://www.ebi.ac.uk/biostudies/studies/S-EPMC10517211biostudies-literatureUnknown118(3)<h4>Background</h4>The obesity epidemic brought a need for accessible methods to monitor body composition, as excess adiposity has been associated with cardiovascular disease, metabolic disorders, and some cancers. Recent 3-dimensional optical (3DO) imaging advancements have provided opportunities for assessing body composition. However, the accuracy and precision of an overall 3DO body composition model in specific subgroups are unknown.<h4>Objectives</h4>This study aimed to evaluate 3DO's accuracy and precision by subgroups of age, body mass index, and ethnicity.<h4>Methods</h4>A cross-sectional analysis was performed using data from the Shape Up! Adults study. Each participant received duplicate 3DO and dual-energy X-ray absorptiometry (DXA) scans. 3DO meshes were digitally registered aThe American journal of clinical nutritionAccuracy and Precision of 3-dimensional Optical Imaging for Body Composition by Age, BMI, and Ethnicity.PMC10517211T32 HL115505P30 DK072476R01 DK109008R01DK109008P30 DK098722P30 CA071789Wong MCGarber AKKelly NNBennett JPLeong LTTian IYChow DMaskarinec GQuon BLiu YEHeymsfield SBShepherd JAPujades SMcCarthy CfalseAccuracy and Precision of 3-dimensional Optical Imaging for Body Composition by Age, BMI, and Ethnicity.<h4>Background</h4>The obesity epidemic brought a need for accessible methods to monitor body composition, as excess adiposity has been associated with cardiovascular disease, metabolic disorders, and some cancers. Recent 3-dimensional optical (3DO) imaging advancements have provided opportunities for assessing body composition. However, the accuracy and precision of an overall 3DO body composition model in specific subgroups are unknown.<h4>Objectives</h4>This study aimed to evaluate 3DO's accuracy and precision by subgroups of age, body mass index, and ethnicity.<h4>Methods</h4>A cross-sectional analysis was performed using data from the Shape Up! Adults study. Each participant received duplicate 3DO and dual-energy X-ray absorptiometry (DXA) scans. 3DO meshes were digitally registered a2023-01-01T00:00:00Z2023 Sep2026-06-02T22:54:55.841Z2025-04-06T17:11:29.108ZS-EPMC105172113747410610.1016/j.ajcnut.2023.07.010