Original articleIncidence and Demographics of Childhood Ptosis
Section snippets
Patients and Methods
The medical records of all patients younger than 19 years who were residents of Olmsted County, Minnesota, when diagnosed with ptosis between January 1, 1965, and December 31, 2004, were reviewed retrospectively. Institutional review board approval was obtained for this study. Potential cases of ptosis were identified using the resources of the Rochester Epidemiology Project, a medical record linkage system designed to capture data on any patient–physician encounter in Olmsted County, Minnesota.
Results
A total of 107 patients younger than 19 years of age were diagnosed with childhood ptosis in Olmsted County, Minnesota, during the 40-year study period. This number corresponds to an age-and gender-adjusted incidence of 7.9 per 100 000 residents younger than 19 years (95% CI, 6.4–9.5). There were 59 (55%) males with an age-adjusted incidence rate of 8.4 (95% CI, 6.3–10.6) per 100 000 compared with and 48 (45%) females with an age-adjusted incidence rate of 7.4 (95% CI, 5.3–9.5) per 100 000 (P =
Discussion
Childhood ptosis was diagnosed in 107 children or 7.9 per 100 000 patients younger than 19 years as residents of Olmsted County, Minnesota, during the 40-year study period. Simple congenital ptosis was the most prevalent subtype of childhood ptosis diagnosed, comprising 76% of all cases and occurring in 1 in 842 live births. A presumed congenital onset occurred in 90% of patients, and the left eyelid was involved in two thirds of patients with unilateral simple congenital ptosis.
This is the
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Manuscript no. 2010-1044.
Financial Disclosure(s): The author(s) have no proprietary or commercial interest in any materials discussed in this article.
Supported in part by the Rochester Epidemiology Project (grant no.: R01-AR30582 from the National Institute of Arthritis, Musculoskeletal and Skin Diseases), Mayo Clinic, Mayo Foundation, Rochester, Minnesota; and by an unrestricted grant from Research to Prevent Blindness, Inc., New York, New York.