Table 2: HPV prevalence in pregnancies with adverse outcome. Studies investigating HPV prevalence in pregnancies with adverse outcome. (a) Spontaneous abortion. (b) Spontaneous preterm delivery.
(a) HPV prevalence in spontaneous abortion

HPV positive cases/all cases (%)Geographical originHPV detection methodReferences
CervixPlacenta
HPV positive cases%HPV positive cases%

Spontaneous abortion844857.1USAPCRSrinivas et al. 2006 [29]
1393424.5Latin AmericaPCRConde-Ferráez et al. 2013 [36]
51917.7EuropePCR Skoczyński et al. 2011 [43]
10886.5EuropePCRMatovina et al. 2004 [28]
10200EuropePCR Sifakis et al. 1998 [60]
271970.4EuropePCRMalhomme et al. 1997 [62]
251560.0USAPCR Hermonat et al. 1997 [18]

Total1393424.53979924.9

(b) HPV prevalence in spontaneous preterm delivery

HPV positive cases/all cases (%)Geographical originHPV detection methodReferences
CervixPlacenta
HPV positive cases%HPV positive cases%

Spontaneous preterm delivery45715.6AsiaHybrid capture assayCho et al. 2013 [35]
301550.0USAPCRGomez et al. 2008 [20]
704767.1USAHybrid capture assayZuo et al. 2011 [21]

Total1155447.0301550.0