{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,4]],"date-time":"2026-09-04T12:57:19Z","timestamp":1788526639992,"version":"build-2803163510"},"reference-count":40,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2002,10,2]],"date-time":"2002-10-02T00:00:00Z","timestamp":1033516800000},"content-version":"vor","delay-in-days":31,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Acad Dermatol Venereol"],"published-print":{"date-parts":[[2002,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold>Background<\/jats:bold> The aetiology of pityriasis alba (PA), a common dermatosis in childhood, is still controversial. The objective of this study was to assess the possible aetiopathogenic factors of this disease in infants.<\/jats:p><jats:p><jats:bold>Methods<\/jats:bold> Forty\u2010four patients with PA and 31 healthy children were examined and compared. Personal hygiene habits, sun exposure, presence of <jats:italic>Staphylococcus aureus<\/jats:italic> in nasal fossae and presence of major or minor signs of atopy were assessed during anamnesis and physical examination. Susceptibility to ultraviolet (UV) B radiation was measured by the onset of a contact hypersensitivity reaction to diphenylcyclopropenone in individuals sensitized in previously irradiated areas.<\/jats:p><jats:p><jats:bold>Results<\/jats:bold> The prevalence of PA was higher in individuals with darker skin, in high phototype categories, as well as in males. The number of daily baths and sun exposure between 10.00\u00a0h and 15.00\u00a0h were significantly higher in the PA group when compared with controls (<jats:italic>P\u00a0=<\/jats:italic>\u00a00.03 and <jats:italic>P\u00a0=<\/jats:italic>\u00a00.0015, respectively). The presence of atopy signs was more common in pityriasis patients (<jats:italic>P\u00a0=<\/jats:italic>\u00a00.002). Susceptibility to UVB radiation was 29.6% in the PA group vs. 29.0% in the control group; nevertheless, important differences were found after stratification in order to control possible confounding factors. The presence of <jats:italic>S. aureus<\/jats:italic> in the nostrils was equal in both groups.<\/jats:p><jats:p><jats:bold>Conclusions<\/jats:bold> Our results confirm that PA, in our population, is more prevalent in males and in individuals in higher phototype categories. In those with inadequate personal hygiene and sun exposure habits the disease is more accentuated, demonstrating that the xerosis presenting in individuals with atopic diathesis is an important element in the development of the disease. <jats:italic>S. aureus<\/jats:italic> is not an important aetiopathogenic factor in PA. Susceptibility to UVB becomes important when related to the patient's phototype.<\/jats:p>","DOI":"10.1046\/j.1468-3083.2002.00494.x","type":"journal-article","created":{"date-parts":[[2003,3,12]],"date-time":"2003-03-12T04:42:51Z","timestamp":1047444171000},"page":"463-468","source":"Crossref","is-referenced-by-count":59,"title":["Pityriasis alba: a study of pathogenic factors"],"prefix":"10.1111","volume":"16","author":[{"given":"M","family":"Blessmann Weber","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"LG","family":"Sponchiado de \u00c1vila","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R","family":"Albaneze","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"OL","family":"Magalh\u00e3es de Oliveira","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"BD","family":"Sudhaus","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T","family":"Ferreira Cestari","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2002,10,2]]},"reference":[{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.1960.01580020025003"},{"key":"e_1_2_7_3_2","first-page":"149","article-title":"Pitir\u00edase alba \u2013 estudo cl\u00ednico, etiopatog\u00eanico e terap\u00eautico","volume":"21","author":"Cardoso PA","year":"1993","journal-title":"Med Cutan Iberio Lat Am"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.1961.01580120027005"},{"key":"e_1_2_7_5_2","first-page":"135","article-title":"Estudo epidemiol\u00f3gico da pitir\u00edase alba (casu\u00edstica de 300 casos)","volume":"50","author":"Beliboni N","year":"1975","journal-title":"An Bras Dermatol"},{"key":"e_1_2_7_6_2","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.1963.01590210030004"},{"key":"e_1_2_7_7_2","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.1956.01550040070010"},{"issue":"2","key":"e_1_2_7_8_2","first-page":"113","article-title":"Dartro Volante (Considera\u00e7\u00f5es sobre a etiologia e terap\u00eautica)","volume":"1","author":"Bacarini I","year":"1949","journal-title":"Rev Ass Med MG"},{"key":"e_1_2_7_9_2","first-page":"513","volume-title":"Sabouraud R Las Maladies Desquamatives \u2013 Pityriasis et Alopecies Pelliculaires","author":"Sabouraud R","year":"1904"},{"key":"e_1_2_7_10_2","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.1924.02360190085006"},{"key":"e_1_2_7_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(01)30910-8"},{"key":"e_1_2_7_12_2","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.1946.01510310031004"},{"key":"e_1_2_7_13_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-4362.1992.tb02711.x"},{"key":"e_1_2_7_14_2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1365-2133.1983.tb04582.x"},{"issue":"2","key":"e_1_2_7_15_2","doi-asserted-by":"crossref","first-page":"164","DOI":"10.2340\/0001555565164167","article-title":"Functional and morphological analysis of the horny layer of pityriasis alba","volume":"65","author":"Urano\u2010Suehisa S","year":"1985","journal-title":"Acta Derm Venereol"},{"key":"e_1_2_7_16_2","doi-asserted-by":"crossref","first-page":"44","DOI":"10.2340\/00015555924447","article-title":"Diagnostic features of atopic dermatitis","volume":"92","author":"Hanifin JM","year":"1980","journal-title":"Acta Derm Venereol (Stockh) Suppl"},{"key":"e_1_2_7_17_2","doi-asserted-by":"publisher","DOI":"10.1097\/00007611-196202000-00018"},{"key":"e_1_2_7_18_2","first-page":"41","article-title":"Frequency and significance of the major and minor features of Hanifin and Rajka among patients with atopic dermatitis","volume":"189","author":"Rudzki E","year":"1994","journal-title":"Clin Lab Invest"},{"key":"e_1_2_7_19_2","doi-asserted-by":"publisher","DOI":"10.1001\/archderm.1988.01670060015008"},{"key":"e_1_2_7_20_2","unstructured":"IBGE.Popula\u00e7\u00e3o residencial por cor ou ra\u00e7a no senso de. 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