The influence of previous preterm birth with singleton pregnancy on the risk of recurrence in subsequent twin pregnancy: a meta-analysis

Figures & data

Figure 1. PRISMA flowchart.

Figure 2. Forest plot for twin expectant mothers with a history of preterm singleton birth.

Figure 3. Publication bias analysis according to the Duval and Tweedie’s method.

Figure 4. Comparative outcomes for twin expectant mothers between those with and without a history of preterm birth (<37 weeks).

Figure 5. Comparative outcomes for twin expectant mothers between those with and without a history of preterm birth (<34 weeks).

Figure 6. Comparative outcomes for twin expectant mothers between those with and without a history of preterm birth (<32 weeks).

Data availability statement

The data that support the findings of this study are openly available in PubMed, Embase and Scopus databases.