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对1987～1993年7年中住院分娩的高危妊娠的危险因素进行分析探讨。结果发现高危妊娠发生率为21．53％；1987～1990的4年中高危妊娠发生率为29．11％。而1991～1993年的3年中，高危妊娠发生率为10．92％；造成这种明显差异的原因可能与前4年住院分娩产妇为农村城市混合人群，而后3年则只是分片区围产保健管理后所辖的城市居民的缘故。由于围产保健在城市中较重视，故城市孕产妇高危妊娠发生率低。在高危妊娠因素中，其中固定因素占23．81％，动态因素占76．19％，此结果提示加强对动态因素的监护，则可使高危妊娠的发生率显著下降。
The risk factors of high-risk pregnancies during hospital delivery in 1987 to 1993 were analyzed. The results showed that the incidence of high-risk pregnancy was 21.53%; 1987 to 1990 4-year incidence of high-risk pregnancy was 29.11%. In the three years between 1991 and 1993, the incidence of high-risk pregnancies was 10.92%. The reason for such a significant difference may be that in the first 4 years of hospital delivery, maternal rural-urban mixed population, and then only the three-year perinatal Urban management under the jurisdiction of the residents of the sake. As perinatal care is more important in the cities, the incidence of high-risk pregnancies in urban maternity is low. Of the high-risk pregnancy factors, the fixation factor accounts for 23.81% and the dynamic factor accounts for 76.19%. This result suggests that strengthening the monitoring of dynamic factors can significantly reduce the incidence of high-risk pregnancy.