Interventions to prevent spontaneous preterm birth in high-risk women with singleton pregnancy: A systematic review and network metaanalysis: A systematic review and network metaanalysis

This is a protocol for a Cochrane Review (Intervention). The objectives are as follows: To compare the eFicacy of current, relevant interventions to prevent preterm birth in women with singleton pregnancy and high individual risk of spontaneous preterm birth. We will consider interventions for women with a history of spontaneous preterm birth or short cervical length and women with asymptomatic vaginal infections. Interventions.