Febbo S, Burvill P W
Transcultural Psychiatry Unit, Royal Perth Hospital, Western Australia.
Aust N Z J Psychiatry. 1995 Jun;29(2):266-9. doi: 10.1080/00048679509075919.
A validity study of an Italian translation of the GHQ-30 was conducted on a sample of 96 Italian-born subjects in the community in Perth, Western Australia, using the shortened version of the Present State Examination as the gold standard for a "case" of non-psychotic psychiatric morbidity. The 96 subjects were a subsample of a study of 1109 subjects seen in a community survey, in which 45.8% had a score above 4 on the GHQ-30. It was found that 5/6 was the most appropriate cut-off point. At this level the sensitivity was 81.2%, the specificity 79.7%, the positive predictive value 66.7%, the negative predictive value 89.5% and the overall misclassification rate 19.8%. Adjusting the results to truly reflect the lower case-prevalence rate in the community, using a method suggested by Goldberg, the corresponding values were 57.7%, 92.6%, 66.7%, 89.5% and 14.6%. It was concluded that this version of the GHQ-30 is suitable for use in the Italian-born, in the community and in general practice in Australia, using a cut-off point of 5/6.
在西澳大利亚州珀斯市社区中选取了96名出生于意大利的受试者作为样本，以简明现状检查的简化版作为非精神病性精神疾病“病例”的金标准，对GHQ-30意大利语译本进行了效度研究。这96名受试者是一项针对1109名社区调查对象的研究的子样本，其中45.8%的人在GHQ-30上的得分高于4分。研究发现，5/6是最合适的临界值。在此水平上，灵敏度为81.2%，特异度为79.7%，阳性预测值为66.7%，阴性预测值为89.5%，总体误诊率为19.8%。采用戈德堡提出的方法将结果进行调整以真实反映社区中较低的病例患病率，相应的值分别为57.7%、92.6%、66.7%、89.5%和14.6%。研究得出结论，对于出生于意大利的人群、澳大利亚社区及全科医疗而言，采用5/6的临界值时，该版本的GHQ-30是适用的。
