Heinik J, Vainer-Benaiah Z, Lahav D, Drummer D
Margoletz Psychogeriatric Centre, Ichilov Hospital, Tel-Aviv, Israel.
Int J Geriatr Psychiatry. 1997 Jun;12(6):653-5. doi: 10.1002/(sici)1099-1166(199706)12:6<653::aid-gps578>3.0.co;2-h.
Clock drawing has been studies in Alzheimer's disease but not in elderly schizophrenics. We examined clock drawing ability in elderly schizophrenia patients and sought possible correlations with demographic, clinical and cognitive variables.
Retrospective analysis of the clock drawing item from the Cambridge Cognitive Examination (CAMCOG) presented to three independent raters.
Long-stay 'open' departments of a public psychiatric hospital in Israel.
Thirty-one physically well psychiatric inpatients suffering from schizophrenia (DSM-III-R, APA), between ages 60 and 76 years.
The Clock Drawing Interpretation Scale (CDIS).
The mean CDIS score was 14.4 (out of 20), and 61-84% of patients scored beneath the normal range (> 18). Interrater reliability was high (0.91-0.96). A moderate but significant correlation was found between CDIS and duration of illness as well as total scores on the Manchester Scale, the CAMCOG and the Mini-Mental State Examination, but not with the other variables studies.
Clock drawing skills of a significant portion of long-term institutionalized elderly schizophrenics are impaired. When this test is used as a screening device for Alzheimer's disease in these patients, the results should be interpreted cautiously. Clock drawing abilities in these patients seem to be related to cognitive and non-cognitive (psychiatric state) factors, as well as to illness duration.
已经对阿尔茨海默病患者进行了画钟测试研究，但未涉及老年精神分裂症患者。我们对老年精神分裂症患者的画钟能力进行了检查，并探寻其与人口统计学、临床及认知变量之间可能存在的相关性。
对剑桥认知检查（CAMCOG）中的画钟项目进行回顾性分析，由三名独立评估者进行评估。
以色列一家公立精神病院的长期“开放式”科室。
31名年龄在60至76岁之间、身体健康的精神分裂症住院患者（符合美国精神病学协会《精神疾病诊断与统计手册》第三版修订本[DSM-III-R]）。
画钟解读量表（CDIS）。
CDIS平均得分为14.4（满分20分），61%至84%的患者得分低于正常范围（>18分）。评估者间信度较高（0.91 - 0.96）。发现CDIS与病程以及曼彻斯特量表、CAMCOG和简易精神状态检查表的总分之间存在中度但显著的相关性，但与其他研究变量无关。
相当一部分长期住院的老年精神分裂症患者的画钟技能受损。在将此测试用作这些患者阿尔茨海默病的筛查工具时，对结果的解读应谨慎。这些患者的画钟能力似乎与认知和非认知（精神状态）因素以及病程有关。
