The included studies had a high risk of bias because there was no concealment, higher than 20% loss to follow-up and CCTs had often been funded by pharmaceutical companies 106 level of evidence: low. Recurrent bacterial vaginosis.
Los estudios incluidos tienen alto riesgo de sesgos por no claridad sobre el método de ocultamiento, pérdidas mayores al 20% y frecuente financiación por la industria 106 Nivel de evidencia: bajo.