Effect of Age, Gender, and Sun Exposure on Ethnic Skin Photoaging: Evidence Gathered Using a New Photonumeric Scale

Anna L. Chien, Ji Qi, Radhika Grandhi, Noori Kim, Sabrina Sisto Alessi César, Tamia Harris-Tryon, Min Soo Jang, Omolara Olowoyeye, Diane Kuhn, Sherry Leung, Barbara M. Rainer, Flora Poon, Jean Suh, Nancy Cheng, Ginette A. Okoye, Sewon Kang

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Background: African-Americans are less affected by photoaging than lighter skin individuals. Although scales for photoaging have been developed for Caucasians and Asians, no scale exists for African-Americans. Aim: To develop a photonumeric scale for photoaging and to determine factors that contribute to photoaging in African-Americans. Methods: Five participants' photographs were selected as standards to create a 9-point photonumeric scale (0 = none, 8 = most severe). Three blinded dermatologists used the scale to grade the remaining participants' photographs. Results: Interrater reliabilities were 0.775 (95% CI: 0.635, 0.880) for trial 1 and 0.832 (0.747, 0.883) for trial 2. Intrarater reliabilities, assessed over a 1 week interval, were 0.863 (0.727, 0.940), 0.928 (0.890, 0.954), and 0.866 (0.739, 0.935) for the three graders, indicating strong agreement. Photoaging scores were then correlated with participants' survey on lifestyle factors, which yielded age as a significant predictor (r = 0.91, p < 0.001). Furthermore, multiple regression model to predict facial photoaging (adjusted R2 = 0.849) selected age (b1 = 0.111, p < 0.001), sun exposure (b2 = 0.206, p = 0.014), and gender (b2 = -0.388, p = 0.063) as the most important variables. Conclusions: A reliable photonumeric scale for photoaging in African Americans was developed. Age, sun exposure, and male gender were found to be contributory factors to photoaging.

Original languageEnglish (US)
JournalJournal of the National Medical Association
DOIs
StateAccepted/In press - Mar 16 2017

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Skin Aging
Solar System
African Americans
Reproducibility of Results
Life Style

Keywords

  • African Americans
  • Aging
  • Ethnic skin
  • Photoaging scale
  • Sun-exposed skin

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Effect of Age, Gender, and Sun Exposure on Ethnic Skin Photoaging : Evidence Gathered Using a New Photonumeric Scale. / Chien, Anna L.; Qi, Ji; Grandhi, Radhika; Kim, Noori; César, Sabrina Sisto Alessi; Harris-Tryon, Tamia; Jang, Min Soo; Olowoyeye, Omolara; Kuhn, Diane; Leung, Sherry; Rainer, Barbara M.; Poon, Flora; Suh, Jean; Cheng, Nancy; Okoye, Ginette A.; Kang, Sewon.

In: Journal of the National Medical Association, 16.03.2017.

Research output: Contribution to journalArticle

Chien, AL, Qi, J, Grandhi, R, Kim, N, César, SSA, Harris-Tryon, T, Jang, MS, Olowoyeye, O, Kuhn, D, Leung, S, Rainer, BM, Poon, F, Suh, J, Cheng, N, Okoye, GA & Kang, S 2017, 'Effect of Age, Gender, and Sun Exposure on Ethnic Skin Photoaging: Evidence Gathered Using a New Photonumeric Scale', Journal of the National Medical Association. https://doi.org/10.1016/j.jnma.2017.05.001
Chien, Anna L. ; Qi, Ji ; Grandhi, Radhika ; Kim, Noori ; César, Sabrina Sisto Alessi ; Harris-Tryon, Tamia ; Jang, Min Soo ; Olowoyeye, Omolara ; Kuhn, Diane ; Leung, Sherry ; Rainer, Barbara M. ; Poon, Flora ; Suh, Jean ; Cheng, Nancy ; Okoye, Ginette A. ; Kang, Sewon. / Effect of Age, Gender, and Sun Exposure on Ethnic Skin Photoaging : Evidence Gathered Using a New Photonumeric Scale. In: Journal of the National Medical Association. 2017.
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abstract = "Background: African-Americans are less affected by photoaging than lighter skin individuals. Although scales for photoaging have been developed for Caucasians and Asians, no scale exists for African-Americans. Aim: To develop a photonumeric scale for photoaging and to determine factors that contribute to photoaging in African-Americans. Methods: Five participants' photographs were selected as standards to create a 9-point photonumeric scale (0 = none, 8 = most severe). Three blinded dermatologists used the scale to grade the remaining participants' photographs. Results: Interrater reliabilities were 0.775 (95{\%} CI: 0.635, 0.880) for trial 1 and 0.832 (0.747, 0.883) for trial 2. Intrarater reliabilities, assessed over a 1 week interval, were 0.863 (0.727, 0.940), 0.928 (0.890, 0.954), and 0.866 (0.739, 0.935) for the three graders, indicating strong agreement. Photoaging scores were then correlated with participants' survey on lifestyle factors, which yielded age as a significant predictor (r = 0.91, p < 0.001). Furthermore, multiple regression model to predict facial photoaging (adjusted R2 = 0.849) selected age (b1 = 0.111, p < 0.001), sun exposure (b2 = 0.206, p = 0.014), and gender (b2 = -0.388, p = 0.063) as the most important variables. Conclusions: A reliable photonumeric scale for photoaging in African Americans was developed. Age, sun exposure, and male gender were found to be contributory factors to photoaging.",
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T2 - Evidence Gathered Using a New Photonumeric Scale

AU - Chien, Anna L.

AU - Qi, Ji

AU - Grandhi, Radhika

AU - Kim, Noori

AU - César, Sabrina Sisto Alessi

AU - Harris-Tryon, Tamia

AU - Jang, Min Soo

AU - Olowoyeye, Omolara

AU - Kuhn, Diane

AU - Leung, Sherry

AU - Rainer, Barbara M.

AU - Poon, Flora

AU - Suh, Jean

AU - Cheng, Nancy

AU - Okoye, Ginette A.

AU - Kang, Sewon

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N2 - Background: African-Americans are less affected by photoaging than lighter skin individuals. Although scales for photoaging have been developed for Caucasians and Asians, no scale exists for African-Americans. Aim: To develop a photonumeric scale for photoaging and to determine factors that contribute to photoaging in African-Americans. Methods: Five participants' photographs were selected as standards to create a 9-point photonumeric scale (0 = none, 8 = most severe). Three blinded dermatologists used the scale to grade the remaining participants' photographs. Results: Interrater reliabilities were 0.775 (95% CI: 0.635, 0.880) for trial 1 and 0.832 (0.747, 0.883) for trial 2. Intrarater reliabilities, assessed over a 1 week interval, were 0.863 (0.727, 0.940), 0.928 (0.890, 0.954), and 0.866 (0.739, 0.935) for the three graders, indicating strong agreement. Photoaging scores were then correlated with participants' survey on lifestyle factors, which yielded age as a significant predictor (r = 0.91, p < 0.001). Furthermore, multiple regression model to predict facial photoaging (adjusted R2 = 0.849) selected age (b1 = 0.111, p < 0.001), sun exposure (b2 = 0.206, p = 0.014), and gender (b2 = -0.388, p = 0.063) as the most important variables. Conclusions: A reliable photonumeric scale for photoaging in African Americans was developed. Age, sun exposure, and male gender were found to be contributory factors to photoaging.

AB - Background: African-Americans are less affected by photoaging than lighter skin individuals. Although scales for photoaging have been developed for Caucasians and Asians, no scale exists for African-Americans. Aim: To develop a photonumeric scale for photoaging and to determine factors that contribute to photoaging in African-Americans. Methods: Five participants' photographs were selected as standards to create a 9-point photonumeric scale (0 = none, 8 = most severe). Three blinded dermatologists used the scale to grade the remaining participants' photographs. Results: Interrater reliabilities were 0.775 (95% CI: 0.635, 0.880) for trial 1 and 0.832 (0.747, 0.883) for trial 2. Intrarater reliabilities, assessed over a 1 week interval, were 0.863 (0.727, 0.940), 0.928 (0.890, 0.954), and 0.866 (0.739, 0.935) for the three graders, indicating strong agreement. Photoaging scores were then correlated with participants' survey on lifestyle factors, which yielded age as a significant predictor (r = 0.91, p < 0.001). Furthermore, multiple regression model to predict facial photoaging (adjusted R2 = 0.849) selected age (b1 = 0.111, p < 0.001), sun exposure (b2 = 0.206, p = 0.014), and gender (b2 = -0.388, p = 0.063) as the most important variables. Conclusions: A reliable photonumeric scale for photoaging in African Americans was developed. Age, sun exposure, and male gender were found to be contributory factors to photoaging.

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KW - Aging

KW - Ethnic skin

KW - Photoaging scale

KW - Sun-exposed skin

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