East P L, Jacobson L J
Department of Pediatrics, University of California, San Diego Medical Center, 92103-8449, USA.
Dev Psychol. 2001 Mar;37(2):254-64. doi: 10.1037/0012-1649.37.2.254.
This study followed 243 younger brothers and younger sisters of parenting teens and nonparenting teens across a 1.5-year period. The average age of siblings was 13.6 years at Time 1 and 15 years at Time 2. Relative to other youths, the sisters of parenting teens exhibited a sharp increase in drug and alcohol use and partying behavior across time and had the highest pregnancy rate at Time 2 (15%). The siblings of parenting teens spent 10 hr a week caring for their sisters' children, and, for girls, many hours of child care was associated with negative outcomes including permissive sexual behavior. Findings suggest that the younger sisters of parenting teens are at very high risk of early pregnancy and that this risk becomes increasingly pronounced across time.
这项研究对243名育儿青少年和非育儿青少年的弟弟妹妹进行了为期1.5年的跟踪调查。兄弟姐妹在时间1时的平均年龄为13.6岁，在时间2时为15岁。与其他青少年相比，育儿青少年的姐妹在吸毒、酗酒和聚会行为方面随时间急剧增加，并且在时间2时怀孕率最高（15%）。育儿青少年的兄弟姐妹每周花10小时照顾姐妹的孩子，对于女孩来说，长时间的育儿与包括放纵性行为在内的负面结果有关。研究结果表明，育儿青少年的妹妹早孕风险非常高，而且这种风险随着时间的推移越来越明显。
