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Paulina Nunez, Jonathan Quevedo-Martínez, María Álvarez-López, Juan Carlos Serna- Ojeda; Follicular conjunctivitis: 5-year frequency of clinical diagnosis in a reference institution in Mexico City.. Invest. Ophthalmol. Vis. Sci. 2014;55(13):5450.
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© ARVO (1962-2015); The Authors (2016-present)
To determine the frequency of follicular conjunctivitis in a large reference institution in Mexico in a period of 5 years, and analyze its distribution by month.
We retrospectively analyzed by a monthly distribution the medical records of patients with clinical diagnosis of follicular conjunctivitis from January 1st 2008 to December 31st 2012.
A total of 859,986 medical consultations were given at the Institution from which 8,930 were diagnosed with follicular conjunctivitis, representing the 1.03% of the total. 5,314 (59%) patients were female and 3,616 (41%) male. The median age was 44 years (range 0-97 years). Most of the patients, 8,832 (98.9%) were categorized only as acute follicular conjunctivitis. In the majority of months there was a range between 100 and 200 patients. The month with the least amount of diagnoses was November 2008 with 85 patients. The majority of reported cases occurred in August 2012, with a peak incidence of 308 cases, decreasing after two months to 190 in October 2012.
There is little literature on the epidemiology of follicular conjunctivitis. Despite reports of outbreaks of the disease during some seasons of the year, our study did not demonstrated a highest frequency by month in 5 years, with exception of year 2012 that presented a peak incidence in the third trimester.
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