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Epidemiological Survey of Skin Diseases in Schoolchildren Living in the Purus Valley (Acre State, Amazonia, Brazil)
Abstract
A total of 9,955 schoolchildren aged 6–16 years have been examined in a tropical region. The prevalence of dermatosis varied from 21 to 87% in the municipalities surveyed. The most common dermatoses were pediculosis (prevalence 50%), nevi (16.8%), pityriasis versicolor (13.2%), pyoderma (12.2%), pityriasis alba (9.9%), dermatophytosis (6.2%), viral dermatosis (6.2%), scabies (3.0%) and acne vulgaris (2.7%). The prevalence of angular stomatitis, miliaria rubra, candidiasis, piedra nigra, keratosis pilaris, ephelides and geographic tongue is lower but still relatively high. Females had higher rates of pediculosis capitís and males higher prevalence of pityriasis alba. The prevalence of pityriasis versicolor, pigmented nevus and scabies was similar in males and females. Folliculitis, macular pigmented nevi and especially pityriasis versicolor tended to increase with age. Leprosy is hyperendemic in the surveyed area and its rate in the schoolchildren examined was 0.08%. Population movement (urbanization), socioeconomic situation, living conditions, promiscuity, and lack of hygiene may be the cause of such high prevalence and of association of two or more skin conditions. Climatic conditions might have enhanced the prevalence of certain dermatoses (pityriasis versicolor, dermatophytosis, piedra nigra, candidiasis, miliaria rubra).
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“Numerous ethnographic observational studies have noted lower acne prevalence among non-Westernized peoples.7, 8, 9, 10, 11”
From Diet and acne: A systematic review (2022) · cites this paper as [8]
In the citing paper
“In multiple clinical trials, high-GI diets (>55) have been associated with worse glycemic control, higher postprandial insulin levels,7,8 and elevated insulin-like growth factor 1 (IGF-1) levels,7”
From Diet and acne: A systematic review (2022) · cites this paper as [8]
In the citing paper
“Prevalence studies from different continents have pointed to a high prevalence of SDs, especially in children, at an average of 30% (range 6 to 87%) [2,3,4,5,6,7,8,9,10].”
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A review of the worldwide prevalence of vitiligo in children/adolescents and adults
Krüger, C., & Schallreuter, K. U. (2012) · International Journal of Dermatology · doi:10.1111/j.1365-4632.2011.05377.x · Cited by 592
Acne vulgaris: a disease of Western civilization
Cordain, L., Lindeberg, S., Hurtado, M., Hill, K., Eaton, S. B., & Brand-Miller, J. (2002) · Archives of Dermatology · doi:10.1001/archderm.138.12.1584 · Cited by 500
Lee, H. H., Gwillim, E. C., Patel, K. R., Hua, T., Rastogi, S., Ibler, E., & Silverberg, J. I. (2019) · Journal of the American Academy of Dermatology · doi:10.1016/j.jaad.2019.08.032 · Cited by 366
Bowen, A. C., Mahé, A., Hay, R. J., Andrews, R. M., Steer, A. C., Tong, S. Y. C., & Carapetis, J. R. (2015) · PLoS ONE · doi:10.1371/journal.pone.0136789 · Cited by 334
The Prevalence of Vitiligo: A Meta-Analysis
Zhang, Y., Cai, Y., Shi, M., Jiang, S., Cui, S., Wu, Y., Gao, X.-H., & Chen, H. (2016) · PLoS ONE · doi:10.1371/journal.pone.0163806 · Cited by 303
Metadata
- Authors
- Bechelli, L. M., Haddad, N., Pimenta, W. P., Pagnano, P. M. G., Melchior, Jr., Fregnan, R. C., Zanin, L. C., & Arenas, A.
- Affiliations
- Universidade de São Paulo (BR)
- Venue
- Dermatologica
- Publisher
- S. Karger AG
- Published
- 2009-10-14
- Volume
- 163
- Issue
- 1
- Pages
- 78-93
- ISSN
- 0011-9075 (ISSN-L)
- 2571-7197
- OpenAlex
- W2093644789
- Cited by
- 111
- References
- 0
- Citations by year
- 2026: 1 · 2024: 1 · 2023: 2 · 2022: 2 · 2021: 2 · 2020: 2 · 2019: 5 · 2018: 8 · 2017: 3 · 2016: 3 · 2015: 5 · 2014: 4 · 2013: 1 · 2012: 10
- FWCI
- 8.02
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Dermatologica (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Infectious Diseases › Dermatological diseases and infestations
- Health Sciences › Medicine › Dermatology › Dermatology and Skin Diseases
- Health Sciences › Medicine › Dermatology › Nail Diseases and Treatments
- Keywords
- skin diseases, elementary school students, Acre, head lice, pityriasis versicolor, pityriasis alba, dermatophytosis, scabies, pyoderma, nevi, leprosy, sex differences, age differences, climatic factors, socioeconomic factors
- MeSH terms
- Adolescent, Brazil, Child, Female, Humans, Male, Rural Health, Sex Factors, Skin Diseases, Socioeconomic Factors, Urban Health
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