Medication and Medication Wastage: Short-Term and Long-Term Effects of an Educational Intervention Among School Children

Background. Education should support the gradual development of students’ necessary abilities to empower them in participating in decision-making together with health care professionals. Aim. The aim of this study was (1) to evaluate baseline knowledge regarding medication and medication wastage among primary school children and (2) to determine the short- and long-term effects of an educational intervention. Methods. Ten primary state schools around Malta were invited to participate; 5 accepted participation (3 control and 2 intervention). Children aged 9 to 12 years attending the sixth grade completed a self-reported questionnaire containing 20 questions, with total scores ranging from 0 to 20. Students from the intervention classes filled in a questionnaire pre and post an educational seminar. All students answered the questionnaire again after 8 months. ANOVA (analysis of variance) with repeated measures was used to compare difference between preintervention and postintervention mean scores. Results. Overall, 40.8% (160/392) of children participated. Mean ± SD age was 10 ± 0.4years; 52.5% (n = 84) were boys. Average preintervention knowledge score for all 5 schools was 11.5 ± 3.6, with 43.1% (n = 69) obtaining responses ≥13 (median). A repeated-measures ANOVA with a Greenhouse-Geisser correction determined that mean knowledge scores differed significantly between preintervention and postintervention (F[1, 81.000] = 75.190, P < .0005). Intervention students retained a significant increase in knowledge scores at 8 months (P = .026). Discussion and Conclusion. The significantly improved knowledge score following the educational intervention both in the short- and long-term demonstrated the success of the intervention. These findings provide a basis for the introduction of education about medication and medication wastage in schools.