Duff Kevin, Schoenberg Mike R, Beglinger Leigh J, Moser David J, Bayless John D, Culp Kennith R, Carnahan Ryan, Mold James W, Scott James G, Adams Russell L
Department of Psychiatry, University of Iowa, Iowa City, Iowa 52242, USA.
Appl Neuropsychol. 2008;15(4):241-9. doi: 10.1080/09084280802325041.
Assessing cognitive change during a single visit requires the comparison of estimated premorbid abilities and current neuropsychological functioning. As newer instruments are developed to measure current cognitive functioning, their relationships with premorbid estimates need to be evaluated. The current study examined the clinical utility of discrepancy scores between an estimate of premorbid intellect derived from demographic variables (i.e., Barona) and the Total score on the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) in three geriatric samples. A large community-dwelling "control" sample and two clinical samples were examined. As expected, there was little difference between estimated premorbid intellect and current RBANS Total Scale scores in the community-dwelling sample, while estimated premorbid intellect obtained from the two clinical samples significantly differed from obtained RBANS Total scores. Similar findings were observed on Discrepancy scores for the five Indexes of RBANS. The current findings, along with normative data on these discrepancy scores, can provide additional confidence for clinicians and researchers who need to determine cognitive decline when using these screening measures of neuropsychological status.
在单次就诊期间评估认知变化需要比较预估的病前能力和当前的神经心理功能。随着用于测量当前认知功能的更新工具的开发，需要评估它们与病前预估的关系。本研究在三个老年样本中检验了由人口统计学变量得出的病前智力估计值（即巴罗纳法）与可重复神经心理状态评估量表（RBANS）总分之间差异分数的临床效用。研究了一个大型社区居住“对照”样本和两个临床样本。正如预期的那样，社区居住样本中预估的病前智力与当前RBANS总量表分数之间几乎没有差异，而从两个临床样本中获得的预估病前智力与获得的RBANS总分显著不同。在RBANS五个指数的差异分数上也观察到了类似的结果。当前的研究结果以及这些差异分数的常模数据，可以为需要在使用这些神经心理状态筛查措施时确定认知衰退的临床医生和研究人员提供更多信心。
