High-Quality Randomized Controlled Trials in Pediatric Critical Care: A Survey of Barriers and Facilitators*

    loading  Checking for direct PDF access through Ovid



High-quality, adequately powered, randomized controlled trials are needed to inform the care of critically ill children. Unfortunately, such evidence is not always available. Our objective was to identify barriers and facilitators of conducting high-quality randomized controlled trials in pediatric critical care, from the perspective of trialists in this field.


Self-administered online survey. Respondents rated the importance of barriers and effectiveness of facilitators on seven-point scales.


Authors of 294 pediatric critical care randomized controlled trials (published 1986 to June 2015).


One hundred sixteen researchers from 25 countries participated.



Measurements and Main Results:

Respondents reported a median (Q1, Q3) of 21 years (15, 26 yr) of experience and 41 (36%) had authored more than one randomized controlled trial. More survey respondents, compared with nonrespondents, had published more than one trial (35% vs 26%; p = 0.002) and their trials were more often cited (median citations/yr, 2.4 vs 1.5; p < 0.001). Of the barriers listed, the five most important were primarily related to lack of funding. The five facilitators perceived as most effective were protected time for research, ability to recruit participants 24 hours per day/7 days per week, conducting randomized controlled trials in collaboration with a research network, funding from government agencies specifically for randomized controlled trials in critically ill children, and academic department support for conducting randomized controlled trials. Respondent experience and country income level were associated with differences in importance ratings for eight of 41 barriers. There were fewer such differences for facilitators.


Lack of funding and time are major barriers to conducting pediatric critical care randomized controlled trials worldwide. Although barriers varied among country income levels, the facilitators of such trials were more consistent. In addition to increased funding, respondents identified other strategies such as research networks that are within the purview of the pediatric critical care research community, to facilitate the conduct of rigorous randomized controlled trials.

Related Topics

    loading  Loading Related Articles

Join Ovid Insights!

Benefits of Ovid Insights Include:

  • Consolidated email digests of the latest research in your favorite topics
  • A personalized dashboard of your topics all on one page 
  • Tools to bookmark and share articles of interest
  • Ability to customize and save your own searches

Register with Ovid Insights »