Gladstien K L, Seider R A, Kidd K K
J Speech Hear Res. 1981 Sep;24(3):460-2. doi: 10.1044/jshr.2403.460.
Analyses of birth rank, age separation, and the frequency of stutterers in birth ranks before and after the proband were undertaken for the purpose of verifying or disproving conjectures made by other authors on possible relationships between family structures and stuttering. Results based on data drawn from over 300 sibships, showed (a) stutterers were randomly distributed among the birth ranks, (b) the age separation of the siblings was independent of stuttering status, and (c) the frequency of stutterers in birth ranks before the proband and the frequency of stutterers in birth ranks after the proband were not significantly different.
为了验证或反驳其他作者关于家庭结构与口吃之间可能关系的猜想，对出生顺序、年龄间隔以及先证者前后出生顺序中口吃者的频率进行了分析。基于从300多个同胞关系中提取的数据得出的结果表明：(a) 口吃者在出生顺序中随机分布；(b) 兄弟姐妹的年龄间隔与口吃状况无关；(c) 先证者之前出生顺序中口吃者的频率与先证者之后出生顺序中口吃者的频率没有显著差异。
