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Table 1 Evaluation of Cochran’s six sources of bias in studies from 2012 to 2017 of weight loss among women who have given birth

From: Lifestyle interventions to maternal weight loss after birth: a systematic review

 Random Sequence generationAllocation concealmentBlinding of participants and personnelBlinding of outcome assessmentIncomplete outcome dataSelective reportingOther bias
Phelan et al. [19](+)(+)(+)(+)(+)(+)(+)
Herring et al. [25](+)(+)(?)(?)(+)(+)(+)
Herring et al. [26](+)(-)(?)(-)(+)(+)(+)
Gilmore et al. [27](+)(-)(-)(-)(+)(+)(+)
Tripette et al. [28](+)(-)(-)(-)(?)(+)(+)
Maturi et al. [29](+)(+)(?)(-)(?)(+)(+)
Albright et al. [30](+)(+)(?)(+)(+)(+)(+)
Colleran and Lovelady [31](+)(+)(-)(-)(-)(+)(+)