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- W4366178085 abstract "Conspicuous facial skin pores are one of the top cosmetic concerns for many women and men around the world. Despite this high concern, our understanding of the prevalence of skin pores is still limited. Our goal is to use a large cross-sectional study to investigate facial skin pores and their associations with age, ethnicity and gender. The study was conducted on 7558 women and 1394 men between 16-80 years old from multiple countries and regions (Mexico, Columbia, China, Japan, Korea, Taiwan, Thailand, India and USA) representing mainly three ethnic groups (Asian, Hispanic and Caucasian). Facial images were captured under controlled multiple lighting modalities using the VISIA-CR system (Canfield Scientific, Parsippany, NJ). Facial skin pore count and average size were quantified from the images using in-house image analysis software (Facial Analysis Computer Evaluation System or F.A.C.E.S.). The image analysis method for quantifying pores was validated by comparing the imaging results to expert visual grading in a separate set of subjects (N=57). The relationship between skin pore attributes (count and size) and population demographics (age, ethnicity and gender) was analyzed using MATLAB Statistics and Machine Learning Toolbox (Mathworks, Natick, MA). Our results showed that skin pore count and size both increased with age (count: r2=0.18, p<0.001, size: r2=0.38, p<0.001). Hispanics showed the largest average pore count and size (both p<0.001). There was no significant difference in pore count or size between Asian and Caucasian women. Interestingly, all three groups had almost the identical rate of increase in pore count and size with age. Within the Asian cohort, those subjects from Northeast Asia (China, Taiwan, Japan, Korea) showed significantly more and larger pores than those from Southeast Asia (Thailand) (count: p<0.001, size: p<0.01). Finally, the results confirmed that men have larger pore count and size than women (p<0.001) at all ages across all ethnic groups. Overall, our large-scale study has shown the significant associations of skin pores with age, gender and ethnicity." @default.
- W4366178085 created "2023-04-19" @default.
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- W4366178085 date "2023-05-01" @default.
- W4366178085 modified "2023-09-28" @default.
- W4366178085 title "420 A cross-sectional multiethnic multicountry study on the prevalence of visible facial skin pores" @default.
- W4366178085 doi "https://doi.org/10.1016/j.jid.2023.03.426" @default.
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