Paluszny M, Abelson A G
Am J Psychiatry. 1975 Apr;132(4):436-6.
The authors found that 22 of the 2,015 referrals to a children's psychiatric clinic during a six-year period were twins--half the number that would be expected on the basis of the national incidence of twins. Evidence of minimal brain dysfunction was found in a higher percentage of the twins than in a matched nontwin group. The authors suggest that factors often inherent in twins (e.g., prematurity and birth difficulties) may be related to this finding.
作者发现，在六年期间转诊至一家儿童精神科诊所的2015名患者中，有22名是双胞胎——这一数字仅为根据全国双胞胎发病率预期数量的一半。与匹配的非双胞胎组相比，双胞胎中发现存在轻微脑功能障碍迹象的比例更高。作者认为，双胞胎中常有的一些因素（如早产和出生困难）可能与这一发现有关。
