Table 2

Risk of bias within individual studies

CriteriaStudy
Ciaranello 200632 Hewett
et al 31
Nyamathi
et al 37 38 40 and Schumann
et al 39
O’Toole
et al 33
Pilote
et al 41
Samet
et al 47 *
Savage
et al 42
Tsai et al 43 44 and
Grelotti et al 45
Tulsky
et al 30
Tulsky
et al 29
Tyler
et al 46
Random sequence generationHighLowUnclearLowUnclearUnclearHighLowLowLowHigh
Allocation concealmentHighLowLowUnclearUnclearUnclearHighLowLowLowUnclear
Blinding of participants/personnelHighHighHighHighHighHighHighHighHighUnclearHigh
Similar baseline outcome measuresHighLowLowLowUnclearLowUnclearLowUnclearUnclearLow
Similar baseline characteristicsHighLowLowLowLowLowUnclearLowLowLowLow
Blinding of outcome assessmentHighLowUnclearUnclearUnclearUnclearUnclearUnclearUnclearUnclearHigh
Incomplete outcome dataHighHighLowLowLowLowHighLowLowLowLow
Protection from contaminationHighUnclearLowUnclearLowLowUnclearLowLowLowLow
Selective outcome reportingHighLowLowLowLowUnclearHighUnclearLowHighUnclear
Other biasHighLowLowLowLowLowHighLowHighHighLow
  • *Assessment based on methods and results as described in the original manuscript. Unpublished data were supplied by authors for secondary analysis of homeless study participants.