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Figure 1 | Trials

Figure 1

From: Brief intervention to reduce risky drinking in pregnancy: study protocol for a randomized controlled trial

Figure 1

Flow diagram for the pilot study. Based on previous data [7], we expect (A) 8% to screen positive [7]; (B) 10% to be ineligible because of substance use [47] and 20% to be ineligible because of other exclusion criteria. In addition, we expect, based on a comparable US study [26] , (C) a 22% refusal rate [27] and (D) a 33% attrition rate at first follow-up [46]. At second follow-up we conservatively estimate (E) a 25% attrition rate.

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