Nineteen anthropometric values for subjects at least 45 years of age are statistically different from those measured for subjects between 18 and 29 years of age. The other ethnic group was composed primarily of Asian subjects and has statistically different dimensions from Caucasians for 16 anthropometric values. Hispanic workers have 14 facial features that are significantly larger than Caucasians, while their nose protrusion, height, and head length are significantly shorter. African-Americans have statistically shorter, wider, and shallower noses than Caucasians. Results: Gender significantly contributes to size for 19 of 24 dependent variables. The 21 anthropometric measurements, body mass index, and the first and second principal component scores were dependent variables, while gender, ethnicity, age, occupation, weight, and height served as independent variables.
An exploratory analysis to determine the effect of different demographic factors had on anthropometric features was assessed via a linear model. A multivariate analysis of the data was performed using Principal Component Analysis. Measurements of height, weight, neck circumference, and 18 facial dimensions were collected using traditional anthropometric techniques. Methods: Survey participants were divided into two gender groups, four racial/ethnic groups, and three age groups. The objective of this study was to determine the face shape and size differences among race and age groups from the National Institute for Occupational Safety and Health survey of 3997 US civilian workers. The proliferation of minority populations in the US workforce has increased the need to investigate differences in facial dimensions among these workers. Objectives: The impact of race/ethnicity upon facial anthropometric data in the US workforce, on the development of personal protective equipment, has not been investigated to any significant degree.
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