Shiono P H, Harlap S, Pellegrin F
Am J Public Health. 1982 Feb;72(2):173-5. doi: 10.2105/ajph.72.2.173.
In a population of about 300,000 Northern California women aged 15--44, the age-adjusted incidence of ectopic pregnancy rose from 55.5 to 84.2/100,000 women, 1972--1978. The ratio of ectopics to 1,000 deliveries-plus-spontaneous abortions rose from 9.4 to 14.8. The change occurred mainly in women under age 30, and was observed in seven of the eight hospitals in the area. There was no alteration in the frequency of hospitalized pelvic inflammatory disease (PID); salpingitis decreased over the years studied; and tubal sterilization events remained constant at around 0.9 per cent per year of women aged 15--44.
在加利福尼亚州北部约30万名年龄在15至44岁的女性群体中,1972年至1978年期间,异位妊娠的年龄调整发病率从每10万名女性55.5例升至84.2例。异位妊娠与每1000例分娩加自然流产的比例从9.4升至14.8。这种变化主要发生在30岁以下的女性中,该地区八家医院中有七家观察到了这种情况。住院盆腔炎(PID)的发生率没有变化;在研究的这些年里,输卵管炎有所下降;15至44岁女性的输卵管绝育率每年保持在0.9%左右不变。