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Fig. 2 | Substance Abuse Treatment, Prevention, and Policy

Fig. 2

From: The absence of data on driving under the influence of alcohol in road traffic studies: a scoping review of non-randomized studies with vote counting based on the direction of effects of alcohol policies

Fig. 2

Summary of the risk of bias assessment

Notes. Risk of bias domains were as follows: D1, study question; D2, eligibility criteria and study population; D3, representativeness of study participants; D4, participants' enrollment; D5, sample size; D6, description and implementation of the intervention; D7, outcomes measures; D8, statistical analysis; and D9, multiple outcome measures. Studies having a low risk of bias in a specific domain were represented by a green plus sign. Those studies judged as having some concern for bias in a specific domain were represented by a red negative sign

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Substance Abuse Treatment, Prevention, and Policy

ISSN: 1747-597X