(a) Cervix
(b) Placenta
Figure 3: Higher HPV prevalence detected in pregnancies with adverse outcome compared to normal pregnancies. HPV prevalence in normal pregnancies, spontaneous abortions, and spontaneous preterm deliveries in %. (a) In cervix. 34 studies have been included in the present analysis, , , and . (b) In placenta. 14 studies have been included in the present analysis, , , and . indicated number of studies included. indicates number of cases included. , , and .