Hansen H, Stroh G, Whitaker K
Am J Public Health. 1978 Aug;68(8):753-9. doi: 10.2105/ajph.68.8.753.
A review of live births, spontaneous fetal deaths, and induced abortions in residents of Upstate New York ages 12--17 shows that pregnancy rates increased during the period 1971 through 1974. This increase was attributable to pregnancies ending in induced abortion while live births remained relatively stable. White teenagers had a higher frequency of induced abortions than non-white teenagers, but induced abortions increased more rapidly among non-whites over the four-year period. School achievement as reflected by highest grade completed at the end of pregnancy was related to risk of pregnancy as well as to election of induced abortions. The distribution of pregnancies by age and school grade suggests that an increased risk of pregnancy is associated with below average but also, and unexpectedly, with above average grade attainment. Incongruity of age and school achievement may identify groups of teenage schoolgirls with special needs for preventive programs.
对纽约州北部12至17岁居民的活产、自然流产和人工流产情况进行的一项回顾显示，1971年至1974年期间怀孕率有所上升。这种上升归因于以人工流产告终的怀孕，而活产数量相对稳定。白人青少年的人工流产频率高于非白人青少年，但在这四年期间，非白人的人工流产增长更为迅速。怀孕结束时完成的最高年级所反映的学业成绩与怀孕风险以及人工流产的选择有关。按年龄和年级划分的怀孕分布情况表明，怀孕风险增加与成绩低于平均水平有关，但出乎意料的是，也与成绩高于平均水平有关。年龄与学业成绩的不一致可能会识别出对预防计划有特殊需求的少女群体。
