Diaz F J, Baca-Garcia E, Diaz-Sastre C, García Resa E, Blasco H, Braquehais Conesa D, Saiz-Ruiz J, de Leon J
Department of Statistics, Universidad Nacional Medellin, Colombia.
Eur Arch Psychiatry Clin Neurosci. 2003 Aug;253(4):197-202. doi: 10.1007/s00406-003-0425-6.
Five factor analyses with limitations explored the Suicidal Intent Scale (SIS) subscales reflecting suicidal behavior dimensions. This larger sample study conducts an exploratory factor analysis of the SIS. Two large samples of suicide attempters (N= 435 and N= 252) from a general hospital were studied. The validity of SIS subscales obtained from the factor analysis was investigated by examining the association between the subscales and clinical variables. There were two factors: expected lethality and planning. In both samples, male gender and depression tended to be associated with higher scores in both subscales (small to medium effect sizes). Hospitalization was associated with higher scores in both SIS subscales (medium to large effects) suggesting that these subscales were reasonably good predictors of suicide attempt severity. Clinicians assessing patient reports to establish the severity of suicide attempts need to ask questions regarding both dimensions: expected lethality and planning.
五项包含局限性探索的因素分析研究了反映自杀行为维度的自杀意图量表（SIS）子量表。这项更大样本量的研究对SIS进行了探索性因素分析。研究了来自一家综合医院的两组大量自杀未遂者样本（N = 435和N = 252）。通过检查子量表与临床变量之间的关联，对从因素分析中获得的SIS子量表的有效性进行了调查。有两个因素：预期致死性和计划性。在两个样本中，男性和抑郁症在两个子量表中往往都与较高得分相关（效应量小到中等）。住院与SIS两个子量表的较高得分相关（效应量中等到大），这表明这些子量表是自杀未遂严重程度的合理良好预测指标。评估患者报告以确定自杀未遂严重程度的临床医生需要询问有关两个维度的问题：预期致死性和计划性。
