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F23 COMPLICATIONS OF HAIR DRESSING - A SYSTEMATIC LITERATURE REVIEW
Khumalo NP
Division of Dermatology, Groote Schuur Hospital and UCT, Cape Town, South Africa
Aims: 1. To identify population studies that investigate the prevalence (and
incidence) of hair dressing complications of whatever nature. 2. To find out
the prevalence (and/or incidence) of specific hair and scalp disorders that
are suspected of having an association with grooming and are thought to be
more common in Africans. Methods Two separate literature searches of three
versions of Medline using the following search terms were conducted: 1. Hair,
hairstyle, survey, cross sectional study, observational study and 2. African
hair, Afro Caribbean and African American hair and the specific terms (and
their synonyms): central centrifugal cicatricial alopecia (CCCA), acne keloidalis
nuchae (AKN), and traction alopecia (TA). Abstracts with the relevant (cross
sectional, case control and cohort) study designs were included. Results and
Conclusions: 1. The majority of studies found an increased risk in both contact
sensitization and dermatitis among hairdressers. 2. Work as a hairdresser is
associated with an increase in respiratory symptoms and signs although this
needs further validation. 3. Although earlier studies suggested a possible
association between hair dyes and cancer, more recent studies make the association
less likely. 4. There is no association between hair dyes and lupus. 5. People
of African ancestry are more likely to use hormone containing hair products.
6. There is an association between the use of heat in hairdressing and injuries,
but most are preventable. 7. The prevalence of AKN was 1.3% (Nigerian skin
clinic) 13.6% (American football players) and up to 13.7% (and that of TA was
1%) in a London skin clinic. None of these were in the general population.
It is obvious that very few epidemiologic studies have looked specifically
at African hair disorders. It is also not clear to what extent the unique shape
of the African follicle contributes to development of these conditions.
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