Body Mass Index and Facial Cues in Sasang Typology for Young and Elderly Persons.

Facial characteristicsmay provide reliable information giving an insight into the inner nature of an individual. This study examines the differences in widely used facialmetrics, including cheek-to-jaw width ratio (CJWR), width-to-height ratio (WHR), perimeterto- area ratio (PAR), and facial masculinity indexes across Sasang constitutional types, to investigate the association between these facial cues and body mass index (BMI) and develop a predictive model for Sasang typing. 2D images of 911 participants were analyzed. The results indicated that TaeEum (TE) type generally has a squarer face, with the male TE type having a squarer and wider face than that of both SoYang (SY) and SoEum (SE) types. Male TE type has longer eyes than that of the SE type, and the lower face of the female TE type is longer than that of the SY type. PAR, WHR, CJWR, and eye size had associations with BMI, and the magnitude of correlation of CJWR in Korean men were twofold higher than that of the Caucasian and African men. BMI and facial metrics including PAR, WHR, CJWR, and eye size were good predictors for TE type, and the most parsimonious model for TE typing included BMI and CJWR with high predictive performances. [ABSTRACT FROM AUTHOR]

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