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
(fair)
Bonomo, 2005LowUnclearUnclearLowLowLowLowUnclear
(fair)
Crowther, 2005LowLowLowLowLowLowLowLow
(good)
Garner, 1997UnclearUnclearUnclearHighHighLowLowHigh
(poor)
Landon, 2009UnclearUnclearLowLowLowLowLowUnclear
(fair)
*

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.