Educational intervention in a neglected disease: hydatidosis/cystic echinococcosis in schoolchildren in northern Chile

Abstract

Background: Hydatidosis is a zoonosis whose most efficient and effective control is health promotion, especially in children and youth. Aim: To measure the impact of an educational intervention program on hydatidosis in schoolchildren in northern Chile. Method: Educational interventional study was performed with pre-post test phases in 3,145 students of preschool, primary and secondary education from three districts. Dimensions, educational units and evaluation systems were defined and incorporated into the curricular bases. The correct answer achievement score was calculated using the T-test. Effect size was estimated using Cohen's d and mixed analysis of variance. Results: Statistically significant differences were found in the total sample and in variables such as gender, district, rural-urban origin and level of education. Post-intervention scores were higher than pre-intervention and with large effect sizes, except for the first levels of education. Higher post-test scores and interaction effects were found with significant differences in rural-urban and in a previously intervened district. The best evaluated dimension was "self-care measures" and the lowest was "responsibly keeping dogs". Conclusions: The educational program was effective when directed to age groups, through pedagogical methods in the curricular bases of educational facilities.