33 have each to raise paresis, 19 next only raising paresis. 55 labor for obstetric forceps, 10 labor for nature, 9 are Caesarean birth.

• 33名有各支轻瘫，19名仅有下支轻瘫。55名为产钳分娩，10名为自然分娩，9名为剖腹产。