The prevalence of trachoma in preschool and school children in Olimpia, Guaraci and Cajobi, Sao Paulo, Brazil.
A school-based prevalence survey of trachoma was conducted in three rural municipalities in the state of Sao Paulo, Brazil, in 1989. A total of 950 children aged 4-11 years were examined. The prevalence of inflammatory trachoma was found to be 6.3%, peaking at 24.1% in the 4 year-old age group. The prevalence of trachomatous scarring was 2.7% and was more prevalent in older children. Risk factors included household sleeping arrangements and nasal discharge.
Medina
N H
NH
Sanitary Ophthalmology Service, World Health Organization Collaborating Center for the Prevention of Blindness Program, Sao Paulo, Brazil.
Oliveira
M B
MB
Tobin
S
S
Kiil
G
G
Mendoca
M M
MM
de Barros
O M
OM
Newland
H S
HS
da Costa
W A
WA
D000367:Age Factors; D001938:Brazil / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D015995:Prevalence; D012307:Risk Factors; D012424:Rural Population; D014141:Trachoma / Q000453:epidemiology*