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Table 2 Risk of bias assessments for individual randomized studies according to standardized criteria (Risk of Bias tool [5, 12]). A minus sign (-) indicates a high risk of bias assessment, and a plus sign (+) indicates a low risk of bias assessment for the randomized studies. A question mark (?) indicates some concerns of bias due to insufficient documentation or information. No symbol indicates the type of bias could not be assessed

From: Nocturnal digital surveillance in aged populations and its effects on health, welfare and social care provision: a systematic review

Randomized studies

(RoB tool assessment criteria)

Holmes et al., 2007 [7]

Rowe et al., 2010 [8]

Rowe et al., 2009 [9]

Random sequence generation

-

-b

-c

Allocation concealment

-

-

-

Blinding of participants / personnel

-

-

-

Blinding of outcome assessment

-

-

-

Incomplete outcome data

-

-

+

Selective reporting

+

+

+

Other bias

?a

  

Comments

a staff showed “resistance” to the intervention and altering methods of care

b 8 participants were exempted from randomization according to preference or previous study participation

c 8 participants were exempted from randomization according to preference or previous study participation