Table 1

Baseline characteristics of included studies

Characteristicn
Study design
 Controlled trials2
 Before–after studies18
 Case reports10
 Time series7
 Interrupted time series1
 Qualitative1
Population
 Residents only27
 Medical students only3
 Fellows only3
 Residents and fellows3
 Medical students and residents2
 Medical students, residents and fellows1
Specialty
 Internal medicine10
 Family medicine7
 Psychiatry4
 Paediatrics3
 Critical care2
 Surgery2
 Neonatology1
 Preventive medicine1
 Radiology1
 Various specialties5
Medical schools3
Clinical setting
 Outpatient
  Primary care15
  Psychiatry2
  Paediatrics1
 Inpatient
  General medical unit2
  Adult intensive care unit2
  Neonatal intensive care unit1
  Paediatric emergency department1
  Radiology1