Fig. 4From: Gestational tissue transcriptomics in term and preterm human pregnancies: a systematic review and meta-analysisProportion of transcriptomic research does not correspond to PTB subtype prevalence. Although only 30 % of all PTB cases are due to medical indications, such as PE, IUGR, or GDM, 76 % of the preterm studies in our systematic review focused on them. In contrast, only 18 % of the studies focused on sPTB, even though this clinical subtype accounts for the majority (45 %) of PTB casesBack to article page