{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,30]],"date-time":"2026-03-30T13:00:25Z","timestamp":1774875625643,"version":"3.50.1"},"reference-count":16,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2019,2,13]],"date-time":"2019-02-13T00:00:00Z","timestamp":1550016000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Skin Research and Technology"],"published-print":{"date-parts":[[2019,7]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Objective determination of skin color has become an essential requirement in managing pigmentary disorders including vitiligo. The readings of available devices can be influenced by factors such as surrounding temperature, vasodilation\/constriction, and skin surface properties. Our aim was to investigate the influence of hair color and length, skin stretching, incomplete contact of the device with the skin, and the pressure with which the device is applied to the test area on skin color determination.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and methods<\/jats:title><jats:p>Dermacatch\u00ae was used to determine the influence of hair color and length in 30 vitiligo patients, and of wrinkles, incomplete contact of the device with the skin and pressure of the device on the test area in 30 healthy volunteers on melanin and erythema indices measured by the device.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Melanin index was significantly higher in lesions with black hair compared to lesions with white hair (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001) and the <jats:styled-content style=\"fixed-case\">MI<\/jats:styled-content> significantly decreased when the black hair was shaved (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001) and when the skin over the test area was stretched (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001). Incomplete contact of the device with the test area led to significantly higher <jats:styled-content style=\"fixed-case\">MI<\/jats:styled-content> (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001) and lower <jats:styled-content style=\"fixed-case\">EI<\/jats:styled-content> (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001). Meanwhile, high pressure induced by the device on the test area led to significantly lower <jats:styled-content style=\"fixed-case\">MI<\/jats:styled-content> (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001) and significantly higher <jats:styled-content style=\"fixed-case\">EI<\/jats:styled-content> (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Factors influencing the readings of devices used for objective determination of skin color have to be taken consideration to ensure accuracy of the measurements done.<\/jats:p><\/jats:sec>","DOI":"10.1111\/srt.12680","type":"journal-article","created":{"date-parts":[[2019,2,13]],"date-time":"2019-02-13T17:10:24Z","timestamp":1550077824000},"page":"512-516","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Evaluation of different factors influencing objective measurement of skin color by colorimetry"],"prefix":"10.1111","volume":"25","author":[{"given":"Tag S.","family":"Anbar","sequence":"first","affiliation":[{"name":"Department of Dermatology, Andrology and STDs Faculty of Medicine Minia University  Minia Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4916-2778","authenticated-orcid":false,"given":"Amira A.","family":"Eid","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Venereology and Andrology Faculty of Medicine Alexandria University  Alexandria Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohamed T.","family":"Anbar","sequence":"additional","affiliation":[{"name":"Department of Dermatology and Venereology Faculty of Medicine Suez Canal University  Ismailia Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,2,13]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0926-9959(97)00183-9"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1034\/j.1600-0846.2001.007001024.x"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/9780470987100.ch26"},{"key":"e_1_2_7_5_1","unstructured":"AkimotoM KoshiishiY IkedaH et\u00a0al.Skin color measurements: usefulness of the metric hue angle of uniform colour spaces for dermatological treatment. 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