Miller C, Eyman R
J Ment Defic Res. 1978 Jun;22(2):137-45. doi: 10.1111/j.1365-2788.1978.tb00970.x.
The findings of McCurley et al. are generally replicated by this study. Community rates are usually lower than those of comparable institutional residents, except for convalescent hospitals used for the care of the profoundly retarded in the United States. Attention is drawn to the sharp mortality difference between ambulatory and non-ambulatory retarded individuals and the affect of the ability to walk can have on the estimation of mortality rates. The ambulation factor should be considered more routinely in future studies. Finally, a revision of the usual method of estimation of age at death was attempted. The utility of the method, similar to standardisation procedures widely used in demography, provides estimates which are more directly comparable between studies.
麦柯利等人的研究结果在本研究中大体上得到了重现。除了美国用于照料重度智障者的康复医院外，社区发病率通常低于类似机构中的居民发病率。需注意行动能力正常和行动能力有缺陷的智障者之间死亡率的显著差异，以及行走能力对死亡率估计可能产生的影响。在未来的研究中应更常规地考虑行走因素。最后，尝试对通常的死亡年龄估计方法进行修订。该方法的效用类似于人口统计学中广泛使用的标准化程序，能提供在不同研究之间更具直接可比性的估计值。
