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This flowchart illustrates the process of screening asymptomatic pregnant women for bacterial vaginosis. The chart indicates that the women bay be (a) low-risk for preterm delivery, (b) average-risk, or (c) high-risk. It shows that there are adverse effects of both screening and antibiotic treatment. And finally, it lists the outcome that is sought: reduction in several adverse pregnancy outcomes, including preterm delivery, preterm premature rupture of membranes, low birth weight, endometritis/neonatal sepsis, and spontaneous abortion.

Figure 3-3Screening example: bacterial vaginosis

From: Chapter 3, Choosing the Important Outcomes for a Systematic Review of a Medical Test

Cover of Methods Guide for Medical Test Reviews
Methods Guide for Medical Test Reviews [Internet].
Chang SM, Matchar DB, Smetana GW, et al., editors.

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