Table 1

Methodological attributes of studies
Blinding
Double blind Participant blinded only Outcome assessor blinded only Unblinded
Cluster 6 0 18 44
Cluster Crossover 1 0 5 3
Individual Patient 70 5 42 74
Individual Patient Crossover 8 2 7 7

Gordon et al.

Gordon et al. BMC Geriatrics 2012 12:31   doi:10.1186/1471-2318-12-31

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