PMID: 20654210Jul 27, 2010Paper

Prevalence of trachoma in rural primary school children in Tengzhou City of Shandong Province in China

[Zhonghua yan ke za zhi] Chinese journal of ophthalmology
Li-hua WangLing-di Yang

Abstract

To investigate the prevalence of trachoma and its risk factors in rural primary school children in Tengzhou City of Shandong Province. In this cross-sectional population-based study, children aged 5 to 14 years old in primary school were randomly selected by a cluster sampling in which school shift was the sampling unit. Out of 2742 students, 2676 were eligible. The examination rate was 97.60%. All selected students were assessed for trachoma using the simplified grading scheme proposed by the World Health Organization (WHO). Statistical significance was calculated using Chi-square tests. Out of 2676 eligible children, 593 cases of active trachoma were found, the prevalence of trachoma was 22.16% (95% CI:20.59%-23.73%). In 1606 boys, the prevalence of active trachoma was 19.74%, compared with 25.79% for girls. Girls were affected by active trachoma higher than boys (25.79% versus 19.74%, P=0.000). There was no significant difference among different age groups in term of the prevalence of trachoma (P=0.052). The prevalence of trachomatous follicle (TF), trachomatous inflammation (TI), and trachomatous scarring (TS) was 5.68% (152/2676), 19.21% (514/2676), 0.56% (15/2676), respectively. TI was more prevalent in girls than in boys...Continue Reading

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