Evidence on the Benefits and Harms of Screening and Treating Pregnant Women Who Are Asymptomatic for Bacterial Vaginosis: An Update Review. Appendix Figure

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Appendix Figure. Illustration of calculation in Table 2, using the outcome of delivery before 34 weeks in the more selective high-risk group

Flow chart illustrates the calculation in Table 2. For details, go to [D] Text Description.

[D] Select for Text Description.

BV = bacterial vaginosis; PTD = preterm delivery.
*To calculate the confidence limits for the increase or decrease in adverse outcome, plug in the confidence limits of effect size here.
†A negative sign (-) indicates a net increase in adverse outcomes (harm), and a positive sign (+) indicates a net decrease in adverse outcomes (benefit).

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