McGue Matt, Malone Steve, Keyes Margaret, Iacono William G
Department of Psychology, University of Minnesota, 75 East River Rd., Minneapolis, MN, 55455, USA,
Behav Genet. 2014 Nov;44(6):620-8. doi: 10.1007/s10519-014-9672-8. Epub 2014 Sep 11.
Parent-offspring resemblance for drinking was investigated in a sample of 409 adopted and 208 non-adopted families participating in the Sibling Interaction and Behavior Study. Drinking data was available for 1,229 offspring, assessed longitudinally up to three times in the age range from 10 to 28 years. A single drinking index was computed from four items measuring quantity, frequency and density of drinking. As expected, the mean drinking index increased with age, was greater in males as compared to females (although not at the younger ages), but did not vary significantly by adoption status. Parent-offspring correlation in drinking did not vary significantly by either offspring or parent gender but did differ significantly by adoption status. In adopted families, the parent-offspring correlation was statistically significant at all ages but decreased for the oldest age group (age 22-28). In non-adopted families, the parent-offspring correlation was statistically significant at all ages and increased in the oldest age group. Findings imply that genetic influences on drinking behavior increase with age while shared family environment influences decline, especially during the transition from late-adolescence to early adulthood.
在参与“兄弟姐妹互动与行为研究”的409个领养家庭和208个非领养家庭样本中，对亲子饮酒相似性进行了调查。有1229名后代的饮酒数据，在10至28岁的年龄范围内对他们进行了长达三次的纵向评估。根据测量饮酒量、频率和密度的四个项目计算出一个单一的饮酒指数。正如预期的那样，平均饮酒指数随年龄增长而增加，男性高于女性（尽管在较年轻年龄段并非如此），但领养状态对其没有显著影响。亲子饮酒相关性在后代或父母性别方面没有显著差异，但在领养状态方面有显著差异。在领养家庭中，亲子相关性在所有年龄段都具有统计学意义，但在最年长的年龄组（22 - 28岁）有所下降。在非领养家庭中，亲子相关性在所有年龄段都具有统计学意义，并且在最年长的年龄组中有所增加。研究结果表明，遗传对饮酒行为的影响随年龄增长而增加，而共享家庭环境的影响则下降，尤其是在从青春期后期到成年早期的过渡阶段。
