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Abstract
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OBJECTIVE To form a concise and useful warning scale of suicide ideation of inpatients with somatic disease.
METHODS 2 677 inpatients who were more than 15 years old were randomly selected in a comprehensive hospital during the period of 2010.11-2013.02.Self-rating Depression Scale (SDS),Self-rating Anxiety Scale(SAS) and self-designed questionnaires which included general information,suicide risk factors and somatic disease were applied.Chi square test,partial correlation analysis,t test,correlation analysis and ROC curve analysis were used for statistical analysis.
RESULTS 1.The warning scale of suicide ideation which contained 18 items was formed.2.The Cronbach's Alpha reliability of the warning scale was 0.84 and its split-half reliability was 0.60.Criterion-related validity studies showed that the scores of the 18 items were positive correlated with SDS and SAS(r SDS =0.50,r SAS =0.54,P＜0.01).This scale also had good structure validity.3.The ROC curve concluded that the area under curve was 0.83,the sensitivity was 68.40％ and the specificity was 79.20％.Positive and negative predictive values were 21.22％ and 96.83％ respectively.
CONCLUSION The reliability and validity of the warning scale entirely accorded with psychometric demands.It also has good specificity and negative predictive value,so it is suitable for clinical promotion.
Language: zh |