{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,13]],"date-time":"2026-10-13T13:37:01Z","timestamp":1791898621898,"version":"4.3.4"},"reference-count":14,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2007,9,3]],"date-time":"2007-09-03T00:00:00Z","timestamp":1188777600000},"content-version":"vor","delay-in-days":2,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int J Dermatology"],"published-print":{"date-parts":[[2007,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Background\u2002<\/jats:bold> There is considerable racial variation in the occurrence of melanonychia striata. The prevalence of melanonychia striata in the Chinese population is not known. The purpose of this study was to investigate the prevalence and characteristics of melanonychia striata in a Chinese population of patients.<\/jats:p><jats:p><jats:bold>Methods\u2002<\/jats:bold> Two thousand, four hundred and fifty\u2010seven Chinese patients attending an Asian medical clinic were examined for the presence of melanonychia striata in a cross\u2010sectional prevalence survey. The examinations were carried out as part of the routine medical care provided to these patients. Patients of mixed racial background were excluded. The fingernails and toenails of each patient were examined, and the presence or absence of melanonychia striata, the anatomic distribution of the lesion, and the age and sex of the patient were recorded.<\/jats:p><jats:p><jats:bold>Results\u2002<\/jats:bold> Melanonychia striata was not detected in patients aged less than 20\u00a0years. The condition was present in 0.6% of patients aged between 20 and 29\u00a0years. Thereafter, the prevalence increased gradually to 1.7% in patients aged 50\u00a0years and over. There was a significant relationship between age and the presence of melanonychia striata (\u03c7<jats:sup>2<\/jats:sup>\u00a0=\u00a0141, <jats:italic>P<\/jats:italic>\u00a0&lt; 0.01). There was no significant sex\u2010related difference in the age\u2010specific prevalence (<jats:italic>P<\/jats:italic>\u00a0&gt; 0.05). The thumbs were most frequently affected, followed by the index fingers (<jats:italic>P<\/jats:italic>\u00a0&lt;\u00a00.001). The condition was bilateral in 40% of cases. None of the patients had involvement of more than two digits.<\/jats:p><jats:p><jats:bold>Conclusion\u2002<\/jats:bold> Melanonychia striata is uncommon in Chinese individuals, especially in those aged under 20\u00a0years. The male to female ratio is approximately equal. The thumbs are most frequently affected and the condition is often bilateral.<\/jats:p>","DOI":"10.1111\/j.1365-4632.2007.03232.x","type":"journal-article","created":{"date-parts":[[2007,9,7]],"date-time":"2007-09-07T10:54:15Z","timestamp":1189162455000},"page":"920-922","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":40,"title":["Melanonychia striata in Chinese children and adults"],"prefix":"10.1111","volume":"46","author":[{"given":"Alexander K. C.","family":"Leung","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wm. Lane M.","family":"Robson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Edmond K. H.","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C. Pion","family":"Kao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Justine H. S.","family":"Fong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander G.","family":"Leong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Benny C. L.","family":"Cheung","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alex H. C.","family":"Wong","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sophie Y.","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,9,3]]},"reference":[{"key":"e_1_2_5_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0190-9622(89)70324-8"},{"key":"e_1_2_5_3_2","first-page":"58","article-title":"An atlas of nail disorders","volume":"41","author":"Leung AK","year":"2001","journal-title":"Consultant"},{"key":"e_1_2_5_4_2","doi-asserted-by":"publisher","DOI":"10.1097\/00000637-199608000-00002"},{"key":"e_1_2_5_5_2","first-page":"76","article-title":"Pigmentatio longitudinalis striata unguium and the pigmentation of nail plate in Addison disease","volume":"68","author":"Kawamura T","year":"1958","journal-title":"Jpn J Dermatol"},{"key":"e_1_2_5_6_2","first-page":"568","article-title":"On band or linear pigmentation of the nail","volume":"33","author":"Tasaki K","year":"1933","journal-title":"Jpn J Dermatol"},{"key":"e_1_2_5_7_2","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.1972.01620070020007"},{"key":"e_1_2_5_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(62)91891-3"},{"key":"e_1_2_5_9_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1440-0960.1980.tb00144.x"},{"key":"e_1_2_5_10_2","first-page":"65","article-title":"Melanonychia striata","volume":"28","author":"Leung AK","year":"1996","journal-title":"Emerg Med"},{"key":"e_1_2_5_11_2","first-page":"1232","article-title":"Melanonychia striata with multiple toenail involvement in a child","volume":"96","author":"Leung AK","year":"2004","journal-title":"J Natl Med Assoc"},{"key":"e_1_2_5_12_2","doi-asserted-by":"crossref","first-page":"167","DOI":"10.1001\/archderm.1996.03890260069010","article-title":"Longitudinal melanonychia in children: a study of eight cases","volume":"312","author":"L\u00e9aut\u00e9\u2010Labr\u00e8ze C","year":"1996","journal-title":"Arch Dermatol"},{"key":"e_1_2_5_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0190-9622(99)70399-3"},{"key":"e_1_2_5_14_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1524-4725.1992.tb02004.x"},{"key":"e_1_2_5_15_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1524-4725.1986.tb01450.x"}],"container-title":["International Journal of Dermatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Fj.1365-4632.2007.03232.x","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/j.1365-4632.2007.03232.x","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,15]],"date-time":"2023-10-15T00:20:08Z","timestamp":1697329208000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1365-4632.2007.03232.x"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2007,9]]},"references-count":14,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2007,9]]}},"alternative-id":["10.1111\/j.1365-4632.2007.03232.x"],"URL":"https:\/\/doi.org\/10.1111\/j.1365-4632.2007.03232.x","archive":["Portico"],"relation":{},"ISSN":["0011-9059","1365-4632"],"issn-type":[{"value":"0011-9059","type":"print"},{"value":"1365-4632","type":"electronic"}],"subject":[],"published":{"date-parts":[[2007,9]]},"assertion":[{"value":"2007-09-03","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}