Polit D F, Kahn J R
Am J Public Health. 1986 Feb;76(2):167-71. doi: 10.2105/ajph.76.2.167.
This study investigated the antecedents and short-term consequences of an early subsequent pregnancy in a sample of economically disadvantaged teenage mothers. Data were gathered over a two-year period from a sample of 675 young mothers living in eight United States cities. Within two years of the initial interview, when half the sample was still pregnant with the index pregnancy, nearly half of the sample experienced a second- or higher-order pregnancy. Characteristics of the young women at entry into the study were relatively poor predictors of which teenagers would conceive again by the final interview. An early repeat pregnancy was associated with a number of negative short-term consequences in the areas of education, employment, and welfare dependency, even after background characteristics were statistically controlled.
本研究调查了经济条件不利的未成年母亲样本中早期再次怀孕的前因和短期后果。在两年时间里，从居住在美国八个城市的675名年轻母亲样本中收集了数据。在首次访谈后的两年内，当一半样本仍怀着首次怀孕的胎儿时，近一半样本经历了二次或更高次怀孕。进入研究时年轻女性的特征对哪些青少年在最终访谈时会再次怀孕的预测能力相对较差。即使在对背景特征进行统计控制之后，早期再次怀孕在教育、就业和福利依赖方面仍与一些负面短期后果相关。
