Table 2:

Risk-of-bias assessment of studies included in the systematic review

Cluster RCTAdequate randomizationAllocation concealmentBlinding of patientsBlinding of practitionersBlinding of outcome assessor sComplete outcome data reported*Incomplete outcome data addressedFree of selective outcome reportingBaseline group similarityReliable primary outcome measuresControl group unlikely to receive interventionFree of other bias
Eccles et al.7YYNANYYNAYNUYY
Dey et al.19YYNANYUUUYYYY
French et al.18YYNANYNYYNUYY
Kerry et al.21YYNANYUUYUNYY
Schectman et al.20YYNANYYNAUNYYN
Interrupted time seriesBlinding of outcome assessorsIntervention independent to other changes over timeSame data collection sources/methods before and after interventionRationale given for no. of data collection pointsComplete data collection reported*Incomplete data collection addressedFree of selective outcome reportingData analyzed appropriatelyShape of intervention effect specifiedReliable primary outcome measuresFree of other bias
Matowe et al.17YUYNYNAYYYNN
Baker et al.24YUYNUUUNNNY
  • Note: N = no, NA = not applicable, RCT = randomized controlled trial, U = uncertain, Y = yes.

  • * Outcome measures obtained for more than 80% of participants (medical practitioners).