Table 1

Risk of bias in included studies

StudySelectionStudy designConfoundersBlindingData collection methodsWithdrawals and dropoutsIntervention integrityAnalysesGlobal ratingsFinal rating
Abir et al, 201432 LowLowLowLowLowLowN/ALowLowLow risk
Emenike et al, 200830 LowLowLowLowLowLowN/ALowLowLow risk
Okenwa et al, 201031 LowLowLowLowLowLowN/ALowLowLow risk
  • NA, Not Applicable.