Concurrence of dermatological and ophthalmological morbidity in onchocerciasis.
Trans R Soc Trop Med Hyg
; 106(4): 243-51, 2012 Apr.
Article
en En
| MEDLINE
| ID: mdl-22342170
ABSTRACT
Prevalence of skin and eye disorders in African onchocerciasis (river blindness) is well documented. However, less is known about their joint occurrence. Information on concurrence may improve our understanding of disease pathogenesis and is required to estimate the disease burden of onchocerciasis. We analysed data from 765 individuals from forest villages in the Kumba and Ngambe Health districts, Cameroon. These data were collected in 1998, as baseline data for the evaluation of the African Programme for Onchocerciasis Control. Concurrence of symptoms was assessed using logistic regression. Onchocerciasis was highly endemic in the study population (63% nodule prevalence among males aged ≥20). Considerable overall prevalences of onchocercal visual impairment (low vision or blindness 4%), troublesome itch (15%), reactive skin disease (19%), and skin depigmentation (25%) were observed. The association between onchocercal visual impairment and skin depigmentation (OR 9.0, 95% CI 3.9-20.8) was partly explained by age and exposure to infection (OR 3.0, 95% CI 1.2-7.7). The association between troublesome itch and reactive skin disease was hardly affected by adjustment (adjusted OR 6.9, 95% CI 4.2-11.1). Concluding, there is significant concurrence of morbidities within onchocerciasis. Our results suggest a possible role of host characteristics in the pathogenesis of depigmentation and visual impairment. Further, we propose a method to deal with concurrence when estimating the burden of disease.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Oncocercosis
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Ivermectina
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Oncocercosis Ocular
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Antiparasitarios
Tipo de estudio:
Clinical_trials
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Prevalence_studies
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Risk_factors_studies
Límite:
Adolescent
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Adult
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Aged
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Animals
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Child
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Female
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Humans
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Male
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Middle aged
País como asunto:
Africa
Idioma:
En
Año:
2012
Tipo del documento:
Article