Fig. 2

The association between VCI and various pregnancy characteristics. Numbers in italics were calculated by the review authors. Low cord insertion is umbilical cord insertion in the lower third of the uterus, or not visible [36].^†Odds ratio (unless stated otherwise) of the pregnancy characteristic in pregnancies with and without VCI. ^‡p value of the odds ratio. [a] Adjusted odds ratio. [b] Relative risk. IVF, in vitro fertilisation; NR, not reported; VCI, velamentous cord insertion