Prevalence and epidemiology of unsuspected onychomycosis in patients visiting dermatologists' offices in Ontario, Canada - a multicenter survey of 2001 patients
| Autor: | Charles Lynde, G N Watteel, R. C. Summerbell, Aditya K. Gupta, Hem C. Jain |
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| Rok vydání: | 1997 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Population Physical examination Hand Dermatoses Dermatology Candidiasis Cutaneous Sex Factors Onychomycosis Epidemiology Confidence Intervals Prevalence medicine Humans In patient Prospective Studies Child education Prospective cohort study Mycosis Aged Aged 80 and over Foot Dermatoses Ontario education.field_of_study medicine.diagnostic_test business.industry Arthrodermataceae Age Factors Middle Aged medicine.disease Confidence interval Surgery Nail disease Female business |
| Zdroj: | Scopus-Elsevier |
| ISSN: | 1365-4632 0011-9059 |
| DOI: | 10.1046/j.1365-4362.1997.00349.x |
| Popis: | Background Questionnaire studies have been used to determine the prevalence of onychomycosis in the United Kingdom and Europe. One disadvantage of this methodology is that the patient self-diagnoses the onychomycosis. There have been very few large studies involving clinical examination of the nails of subjects, followed by mycological confirmation of the onychomycosis. We therefore determined the prevalence of onychomycosis in patients visiting dermatologists' offices in Ontario, Canada. Methods In a prospective, multicenter study, the finger- and toenails of all new patients presenting to dermatologists' offices were examined by a board-certified dermatologist. If there was clinical suspicion of onychomycosis, then nail samples were obtained for mycoiogical examination at a central laboratory. Patients referred specifically for the management of onychomycosis were excluded. Results Toenails appeared abnormal in 455 (22.7%) of 2001 patients. Mycologically-confirmed pedal onychomycosis was present in 182 (9.1%) of the 2001 patients. The estimated value of the prevalence of onychomycosis in Ontario is 6.86% (95% confidence interval (Cl): 5.8–8.0%), when corrected for age and sex of the general population using census data. Onychomycosis increased with age (P < 0.0001). The odds of males having onychomycosis was 84.3% greater than females of the same age (P= 0.0003). The distribution of organisms in the 141 patients with pedal onychomycosis who were culture positive was: dermatophytes 131 (92.9%), Candida species 4 (2.8%) and non-dermatophyte molds 6 (4.3%). Conclusions The prevalence of mycologically-confirmed toenail onychomycosis was 9.1%, with the estimated prevalence in Ontario being 6.86%. The majority of patients with abnormal-appearing nails were unaware they might have onychomycosis, that it is infectious and potentially treatable, suggesting that there is potential for increased public awareness and education. |
| Databáze: | OpenAIRE |
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