Table 3

Risk of bias assessment across studies

Bang
et al20
Carlo
et al17
Carlo
et al18
Gill
et al21
Zhu
et al26
Deorari
et al24
Jeffery
et al28
O’Hare
et al25
Opiyo
et al19
Boo31Sorensen
et al29
Hole
et al32
Msemo
et al22
Goudar
et al23
Vossius
et al77
Ashish et al (Unpublished data)Bellard
et al
Patel et al (Unpublished data)
Adequate sequence generation?High riskLow risk
Allocation concealment?High riskLow risk
Incomplete outcome data addressed?High riskLow riskLow riskLow riskUnclear riskUnclear riskUnclear riskLow riskUnclear riskLow riskLow riskHigh riskUnclear riskUnclear riskLow riskLow riskLow riskLow risk
Free of selective reporting?Low riskLow riskLow riskLow riskLow riskLow riskLow riskLow riskLow riskLow riskLow riskLow riskLow riskLow riskLow riskLow riskLow riskLow risk
Free of other bias?Unclear riskLow riskLow riskLow riskLow riskLow riskLow riskUnclear riskUnclear riskUncleat riskLow riskUnclear riskLow riskUnclear riskHigh riskLow riskHigh riskUnclear risk
Baseline outcomes similar?Low riskLow riskUnclear riskUnclear riskUnclear riskUnclear riskunclear riskUncleat riskUnclear riskUnclear riskUnclear riskUnclear riskUnclear riskUnclear riskUnclear riskUnclear risk
Free of contamination?Low riskLow riskLow riskLow riskUnclear riskLow riskLow riskHigh riskLow riskHigh riskLow riskLow riskHigh riskLow riskLow riskLow risk
Baseline characteristics similar?Unclear riskUnclear riskUnclear riskUnclear riskUnclear riskUnclear riskUnclear riskLow riskLow riskUnclear riskUnclear riskLow riskUnclear riskHigh riskLow riskLow risk