In the case of TLR2 rs3804099, the analysis, adjusted by anemia or vaginal bleeding, observed between 22 and 35 weeks of ongoing pregnancy, identified a significant relationship between TC heterozygotes and PTL in over-dominant models (OR 0.63, 95% CI 0.40–0.99; p = 0.046 and 0.044, respectively; Table 3). Here, TLR2 is linked to anemia.