Philliber S G, Namerow P B, Jones J E
Public Health Rep. 1985 Jan-Feb;100(1):34-40.
During the past decade, much has been written about adolescents' use of contraception and their experience of pregnancy. Few researchers, however, have distinguished between the experiences of older and younger adolescents. The purpose of this paper is to provide such a comparison. The data were collected during more than 7,000 visits made by 4,318 patients during almost 5 years of operation of an adolescent contraceptive service in the Washington Heights area of New York City. Characteristics of four groups--14 years and younger, 15-17 years, 18-19 years, and 20-21 years--were examined. The youngest teens initiated sexual intercourse 4 years earlier than the oldest group. Among those 14 or younger, 87 percent had never used contraception, and 9 percent had been pregnant. In the oldest group, more than two-thirds had used a contraceptive method, and three-fifths had already experienced a pregnancy. Results of multivariate analyses indicate that older teens are more likely to come to the clinic for contraception and to be consistent users of the first method of contraception that they select. On the other hand, younger teens are significantly more likely to revisit the clinic and to be pregnant at a second or later visit.
在过去十年里，关于青少年使用避孕措施及其怀孕经历的著述颇多。然而，很少有研究者区分年龄较大和较小青少年的经历。本文旨在进行这样的比较。这些数据是在纽约市华盛顿高地地区一家青少年避孕服务机构近五年运营期间，4318名患者进行的7000多次就诊过程中收集的。研究了四个年龄组——14岁及以下、15 - 17岁、18 - 19岁和20 - 21岁——的特征。最年轻的青少年开始性行为的时间比最年长的组早4年。在14岁及以下的青少年中，87%从未使用过避孕措施，9%曾怀孕。在最年长的组中，超过三分之二的人使用过避孕方法，五分之三的人已经有过怀孕经历。多变量分析结果表明，年龄较大的青少年更有可能前往诊所寻求避孕措施，并且更有可能持续使用他们选择的第一种避孕方法。另一方面，年龄较小的青少年再次就诊的可能性显著更高，并且在第二次或之后的就诊时怀孕的可能性也更高。
