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目的探讨自然流产与既往孕产状况的相关性。方法采取整群随机抽样选取兰州市某医院2004～2005年住院孕产妇住院病历共计5002份,摘录相关研究信息,计算有关率及进行相关性分析。结果有既往人流史的一般流产和过期流产发生率均高于无人流史的,分别为6.70%、5.66%,既往人流次数越多,自然流产一般类型的发生率越高(χ2=6.69,P<0.05),自然流产一般类型的各个发展阶段和既往人流次数之间存在相关性(χ2=12.68,P<0.05);有既往生育史的一般流产、过期流产和习惯性流产发生率均高于无既往生育史的(P<0.01),分别为7.20%、5.20%和0.76%,既往生育次数越多,自然流产一般类型的发生率越高(P<0.01),自然流产一般类型的各个发展阶段和既往生育次数之间存在相关性(χ2=16.57,P<0.05)。结论自然流产的发生与既往人流和生育密切相关,真正做到有计划的生育,减少胎次和人流次数,可以降低自然流产的发生。
Objective To explore the relationship between spontaneous abortion and previous pregnancy status. Methods A total of 5002 inpatient maternal medical records were collected from a hospital in Lanzhou City from 2004 to 2005 by cluster random sampling. The related research information was extracted and the relevant rates were calculated and the correlation analysis was carried out. Results The incidences of both abortion and abortion were higher than those without abortion, which were 6.70% and 5.66% respectively. The higher the number of previous abortions, the higher the prevalence of general abortion (χ2 = 6.69, P <0.05). There was a correlation between the general development of spontaneous abortion and the number of previous abortions (χ2 = 12.68, P <0.05). The incidences of general abortion, abortion and habitual abortion with previous birth history were higher than There was no history of previous birth (P <0.01), which were 7.20%, 5.20% and 0.76%, respectively. The higher the number of previous births, the higher the prevalence of general types of spontaneous abortion (P <0.01) and the general development of spontaneous abortion There was a correlation between stage and previous birth frequency (χ2 = 16.57, P <0.05). Conclusions The occurrence of spontaneous abortion is closely related to past abortion and childbirth, and truly planned birth, reduction of parity and the number of abortions can reduce the incidence of spontaneous abortion.