Objective:To design an improved scoring for head-position delivery, and investigate its value in persistent occiput posterior position(POPP) or persistent occiput transverse position(POTP).

• 目的:设计一种在临床上能更及时、准确地做出顺产与难产判断的头位分娩评分法,并探讨其对判断初产妇持续性枕横位、枕后位分娩方式的临床价值。