Dangerous Decibels Program in Elementary and Middle School Students: Effectiveness After a 6-Month Follow-Up.

The DD program effectively improved the knowledge and behavior of 10- to 12-year-old children regarding noise in the short- and medium-term follow-ups. However, no significant changes were achieved in terms of barriers only by using the program and the online game. Adding a second intervention (the online game) to the program seems to be a good option to maintain the changes achieved with the interactive class.