The peripheral ANG1 level was significantly lower in normal birth (2276.1 ± 58.8vs2349.2 ± 139.8), low birth weight (2222.9 ± 81.6vs2310.9 ± 159.8), and stillbirth (2075.9 ± 37.3vs2287.3 ± 71.4) in the PM+ group compared to the PM- group. The gene discussed is ANGPT1; the disease is Stillbirth.