Can Fam Physician. 1980 May;26:687-94.
Sexual and contraceptive attitudes and practices were assessed for 486 single females aged 13-20, attending ten birth control centres in Ontario. At last intercourse, 28% were not using any contraception and only 33% reported they had used contraceptives all of the time. Younger adolescents were less likely than older ones to have used effective methods of contraception or to have used contraceptive methods effectively. Younger adolescents expressed greater embarrassment about obtaining oral contraceptives, particularly from the family physician, and were more likely to perceive oral contraceptives as being difficult to obtain.
本研究评估了安大略省 10 个节育中心的 486 名 13-20 岁单身女性的性态度和避孕措施。在上一次性交中，28%的人没有使用任何避孕措施，只有 33%的人报告说她们一直都在使用避孕措施。与年龄较大的青少年相比，年龄较小的青少年更不可能使用有效的避孕方法，或者有效地使用避孕方法。年龄较小的青少年在获得口服避孕药时感到更加尴尬，特别是从家庭医生那里获得，并且更有可能认为口服避孕药难以获得。
