First, using the last sample taken before 28 weeks of gestation, predictive models were created for sPTB subsets, resulting in delivery after 28 weeks: all sPTB cases (Figure 7A), all sPTL cases (Figure 7B), sPTL cases delivered before 34 weeks of gestation (sPTL <34 or early sPTL) (Figure 7C), all PPROM cases (Figure 7D), and PPROM cases delivered before 34 weeks of gestation (PPROM <34 or early PPROM) (Figure 7E). Here, SPTB is linked to preterm premature rupture of the membranes.