Table 5 Risk of Bias 2 assessment of randomised studies.

From: The effectiveness and usability of online, group-based interventions for people with severe obesity: a systematic review and meta-analysis

Study

Random-ization process

Deviations from intended interventions (assignment)

Missing outcome data

Measurement of the outcome

Selection of the reported result

Overall Bias

Bruce et al. [47]

Fraticelli et al. [48]

Griffith et al. [44]

Harvey et al. [37], Harvey-Berino et al. [38], Krukowski et al. [40], Krukowski et al. [39]a

West et al. [54]

West et al. [42], West et al. [43], Stansbury et al. [41]b

West et al. [55]

Wild et al. [49]

Willis et al. [50]

  1. refers to ‘low risk of bias’, refers to ‘some concerns’, refers to ‘high risk of bias’
  2. aThese four references refer to the same RCT.
  3. bThese three references refer to the same RCT.
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