晚期妊娠流产：1981-2006 年魁北克死产数据分析。
Late pregnancy abortions: an analysis of Québec stillbirth data, 1981-2006.
机构信息
Institut National de Santé Publique du Québec, 190, boulevard Crémazie Est, Montreal, QC, H2P 1E2, Canada.
出版信息
Int J Public Health. 2012 Apr;57(2):443-6. doi: 10.1007/s00038-011-0313-1. Epub 2011 Oct 21.
OBJECTIVES
We evaluated late pregnancy abortions from 1981 to 2006 in Québec, Canada.
METHODS
We extracted late abortions from the stillbirth mortality file, and calculated yearly rates per 100,000 pregnancies, including mean gestational age, birth weight, maternal age and education.
RESULTS
There were 14.4 late abortions per 100,000 overall pregnancies [95% confidence interval 12.9, 16.1], and rates appeared to increase with time. Mean gestational age (24.7 weeks) and birth weight (886 g) suggested that abortions were performed in the late second and third trimesters.
CONCLUSIONS
Late abortions in Québec are not common but do occur. Research is needed to determine whether the increase in rates over time reflects better reporting or a true increase. Improved surveillance of late abortions may be warranted.
目的
我们评估了加拿大魁北克省 1981 年至 2006 年的晚期妊娠流产。
方法
我们从死产死亡率文件中提取晚期流产，并计算每 10 万例妊娠的年发生率，包括平均孕龄、出生体重、产妇年龄和教育程度。
结果
总体而言，每 10 万例妊娠中有 14.4 例晚期流产[95%置信区间 12.9，16.1]，且流产率似乎随时间增加。平均孕龄（24.7 周）和出生体重（886 克）提示流产发生在妊娠的晚期第二和第三阶段。
结论
魁北克的晚期流产并不常见，但确实存在。需要研究以确定随着时间的推移，发生率的增加是反映了更好的报告还是真正的增加。对晚期流产的监测可能需要改进。
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