Tinea Capitis in California Children: A Population-based Study of a Growing Epidemic

Abstract
Objectives. To describe trends in tinea capitis incidence among California children and to determine subpopulations at increased risk. Design. Retrospective population-based study. Setting. California, 1984 through 1993. Population. Children Outcome Measures. California Medi-Cal provider data for first-time prescriptions of oral griseofulvin suspension were used to estimate annual incidence of tinea capitis and calculate risk ratios. Results. From 1984 through 1993, the incident rate for prescriptions of oral griseofulvin suspension increased by 84.2% for all children, 140.4% for white children, and 209.7% for African-American children. In 1993, incidence rates (per 10 000 enrolled) were 252.1 claimants for African-American children, 23.1 for white, 17.5 for Hispanic, and 14.3 for Asian/Pacific Islander. The highest rate by location was San Francisco County (172.2). In age groups Conclusions. Tinea capitis is epidemic among California children with higher rates in the northern counties studied. African-American children are the most affected by this epidemic; however, white children have also experienced increased rates.

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