title: [Application of the new trachoma grading system of WHO].
abstract: The new trachoma grading system of WHO was followed in an epidemiologic survey of a rural sample population of 2,728 in Pingyin County, Shandong Province. The prevalence of trachoma was found to be 9.60%, and in children under 10 years of age, 3.69%. Trachoma was related with age; the rates of trachomatous inflammation-intense (TI), trachomatous scarring (TS), trachomatous trichiasis (TT) and corneal opacity (CO) all increased with aging. The epidemiologic significance of the grading system was discussed.
authors.affiliation: Department of Ophthalmology, Shandong Provincial Hospital, Jinan.
authors.forename: L H
authors.initials: LH
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D012015:Reference Standards; D012424:Rural Population; D014141:Trachoma / Q000145:classification / Q000175:diagnosis* / Q000453:epidemiology; D014944:World Health Organization