ArticleThe Pan African medical journal2020
[Scalp disorders in black Africans treated in a dermatology department in Cotonou (Benin): age-sex-specific epidemiological and clinical features].
Article in The Pan African medical journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionscalp disorders are related to several factors including ethnicity, gender or age. In black people, they can be caused by intrinsic and extrinsic factors. Very few studies have been conducted in this ethnic group residing in black Africa, hence the purpose of our survey was to highlight the epidemiological and clinical features of age-sex-specific scalp disorders in patients treated in a dermatology department in Cotonou (Benin).
methodswe conducted a retrospective and descriptive study of all the medical records of new patients coming to consultation in the dermatology department at the National Hospital and University Center (CNHU) of Cotonou over a period of seven years. The main reason for consultation was scalp disorder. Data on epidemiological and clinical features were collected and analyzed with the EPI-Info 7 software.
resultsprevalence of scalp disorders was 2.4% (181/7554). Children (0-18 years) accounted for 38.7% (70 patients) and adults 61.3% (111 patients). Children aged 0-10 (54; 29.8%) and adults aged 25-40 (51; 28,2%) were the most affected. Sex ratio was 1.8. Non-alopecizing dermatosis was diagnosed in 10; 5.5% of cases while alopecizing dermatosis in 171 patients (94.5%), of whom 82.9% (151/171) had non-scarring dermatosis and 11.7% (20/171) had scarring dermatosis. The most common conditions were ringworm (41; 22.6%), mainly occurring in 0-10-year-old boys, chronic non-scarring folliculitis (39; 21.5%) mainly occurring in 0-5-year-old boys and 19-40-year-old men, pelade (38; 21%) occurring in both male and female sexes, especially between the ages of 6-10 and 25-40, traction alopecia (17; 9.4%) occurring exclusively in women and mainly in the 25-40-year-old age group, fibrous folliculitis at the nape of the neck (12; 6.6%) occurring exclusively in men from 19 to 50 years, trichotillomania (9; 5%) occurring in both male and female sexes, mainly in children aged 6-10 years and in adults aged 25-40 years, Quinquaud folliculitis decalvans (6; 3.3%) occurring uniformly in both male and female sexes and mainly between 25-40 years of age.
conclusionscalp disorders mainly affect male patients before puberty and young adults. They were arranged in descending order in non-scarring alopecizing dermatoses, scarring alopecia and non-alopecizing dermatoses.
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