Parikh et al. (doi: 10.1542/peds.2013-2005) decided to examine this by looking at inpatients with bronchiolitis before and after the Guidelines were published using a large administrative billing database. In a representative cohort of 41 pediatric hospitals involving more than 130,000 patients over an 8 year period, it appears the guidelines are making a difference in reducing inappropriate non-evidence-based tests and some treatments.
To find out just how utilization is reduced and in what way, take a deep breath and read this article for yourself. If you haven’t been adhering to these Guidelines, you likely will after you read this interesting study.