Table C2Methodological quality of randomized controlled trials (RCTs) using the Cochrane Collaboration's tool for assessing risk of bias for Key Questions 2 to 5

Author YearSequence generationAllocation concealmentBlindingIncomplete outcome data*Selective outcome reportingOtherOverall Risk of Bias*
(quality rating)
Participants*Outcome assessment*
Bevier, 1999UnclearUnclearUnclearLowUnclearLowLowUnclear
Bonomo, 2005LowUnclearUnclearLowLowLowLowUnclear
Crowther, 2005LowLowLowLowLowLowLowLow
Garner, 1997UnclearUnclearUnclearHighHighLowLowHigh
Landon, 2009UnclearUnclearLowLowLowLowLowUnclear

Domains for which assessments are made by outcome were assessed for objective outcomes

Quality rating based on EPC Methods Guide (good, fair, poor)

From: Appendix C, Methodological Quality of Included Studies

Cover of Screening and Diagnosing Gestational Diabetes Mellitus
Screening and Diagnosing Gestational Diabetes Mellitus.
Evidence Reports/Technology Assessments, No. 210.
Hartling L, Dryden DM, Guthrie A, et al.

PubMed Health. A service of the National Library of Medicine, National Institutes of Health.