The developmental trajectory of clinical evidence: From RCT to living systematic review
Pediatric emergency medicine (PEM) is a newer subspecialty in child health starting in Canada in the 1980’s. To build the evidence base for clinical care, single center randomized controlled trials (RCTs) with small sample sizes were conducted. However, this led to potential of poorly designed and conducted trials with inadequate statistical power, which often were not published (if they gave negative answers). Systematic reviews of RCTs started to improve the situation, along with the establishment of research networks performing large RCTs provided more definitive guidance for the clinician.