Antibiotic prescribing and dispensing for acute respiratory infections in children: effectiveness of a multi-faceted intervention for health-care providers in Vietnam

Background: Appropriate antibiotic use is vital to effectively contain antibiotic resistance and improve global health. Acute respiratory infections (ARIs) remain the leading cause of disease and death in children under five in low-income countries. Objective: To evaluate a multi-faceted intervention targeting health-care-providers' (HCPs) knowledge, practical competences and practices regarding antibiotic use for ARIs. Methods: A multi-faceted educational intervention with a two-armed randomised controlled design targeting HCPs treating ARIs in children was conducted in Bavi district, a rural district in Northern Vietnam in 2010-2011. Thirty-two communes of the district were randomized into two arms, with 144 HCPs in the intervention arm and 160 in the control arm. The intervention, conducted over seven months, comprised: (i) education regarding appropriate-antibiotic use, (ii) case scenario discussion and (iii) poster distribution. Questionnaires to assess knowledge and dispensing/prescribing forms to assess practice were completed before-and after interventions. The main outcome measures were differences in improvement in knowledge and practice in the intervention and control group, respectively. Results: Knowledge improved in the intervention group for ARI aetiology by 28% (Delta(Decrement) control arm 10%), antibiotic use for mild ARIs by 15% (Delta(Decrement) control arm 13%) and for severe ARIs by 14% (Delta(Improvement) control arm 29%). Practical competence for a mild ARI case scenario improved in the intervention and control groups by 20% and 11%, respectively. Total knowledge score increased statistically in the intervention group (Delta(mean improvement) 1.17); less so in the control group (Delta(mean improvement) 0.48). Practice regarding antibiotics for mild ARIs improved by 28% in the intervention group (Delta(Decrement control) arm 3%). Conclusions: The intervention significantly improved HCPs' knowledge of ARIs and practice of antibiotic use in treatment of ARIs. We suggest mixed method assessment and long-term follow-up of these interventions to enable better appreciation of the effects and effect sizes of our interventions.