Guttmacher Institute, New York, New York 10038, USA.
J Adolesc Health. 2010 Sep;47(3):312-4. doi: 10.1016/j.jadohealth.2010.02.002. Epub 2010 Apr 9.
Unintended pregnancy rates typically include all women in the denominator. This understates adolescent rates because many adolescents are not sexually active. When rates are recalculated including only sexually active people, adolescents aged 15-19 years have the highest rates, arguing for a continued focus on adolescents in efforts to reduce unintended pregnancy.
意外妊娠率通常包括分母中的所有女性。这低估了青少年的比率，因为许多青少年没有性行为。当仅包括有性行为的人重新计算比率时，15-19 岁的青少年的比率最高，这表明在努力减少意外妊娠的过程中应继续关注青少年。
