Effects of educative intervention on adverse events from the pentavalent vaccine: a quasi-experimental study.

Aim: To evaluate the knowledge of mothers regarding adverse consequences from the pentavalent vaccination before and after they participated in an educative intervention. Method: This is a quasi-experimental study, with a before-and-after analysis, of a single group of 100 mothers of breastfeeding babies, from September to October 2014, in an outpatient clinic of a public maternity hospital in the municipality of Imperatriz, Brazil. Results: Following the intervention, a significant increase in understanding was observed among the study participants in all questions (p<0.05) regarding adverse events after the pentavalent vaccine. After the intervention, there was a significant increase of right answers to the questions: who to seek advice from after an adverse event due to the vaccine (p=0.004) and which adverse events from the pentavalent vaccine are known to mothers (p=0.04). Conclusion: The results indicate a positive change in the level of understanding of mothers regarding the adverse events after the pentavalent vaccination. The study provides a basis for the adoption of long-term intervention strategies for nurses. [ABSTRACT FROM AUTHOR]