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对１９８７年７月～１９９２年６月７２２例妊高征的发生与气象关系进行综合分析，并对１９８９年７月～１９９２年６月２７０例妊高征患者胎盘位置与同期半年中抽取正常妊娠４７３例胎盘位置相比较。结果表明：夏季高温、低湿度、低气压是本地区妊高征的好发时节，妊高征的发生与气温呈正相关，与相对湿度及气压呈负相关（Ｐ均＜０．０５）。侧壁型胎盘的孕妇较中央型胎盘的孕妇易发生妊高征，两者差异有显著意义（Ｐ＜０．０１）。
July 7 ~ June 1992 722 cases of pregnancy-induced hypertension and the relationship between the incidence of a comprehensive analysis of the July 1989 ~ June 1992 270 cases of pregnancy-induced hypertension in patients with placental position and the same period of six months to take normal pregnancy 473 cases of placental position compared. The results showed that the high temperature, low humidity and low pressure in summer were the good times of PIH. The incidence of PIH was positively correlated with air temperature and negatively correlated with relative humidity and air pressure (P <0.05). Pregnant women with sidewall placenta were more likely to develop PIH than pregnant women with central placenta, the difference was significant (P <0.01).