期刊
BMJ-BRITISH MEDICAL JOURNAL
卷 327, 期 7424, 页码 1144-1146出版社
BMJ PUBLISHING GROUP
DOI: 10.1136/bmj.327.7424.1144
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Objective To determine the diagnostic accuracy, of two verbally asked questions for screening for depression. Design Cross sectional criterion standard validation study. Setting 15 general practices in New Zealand. Participants 421 consecutive patients not taking psychotropic drugs. Main outcome measures Sensitivity, specificity, and likelihood ratios of the two questions compared with the computerised composite international diagnostic interview. Results The two screening questions showed a sensitivity and specificity of 97% (95% confidence interval, 83% to 99%) and 67% (62% to 72%), respectively. The likelihood ratio for a positive test was 2.9 (2.5 to 3.4) and the likelihood ratio for a negative test was 0.05 (0.01 to 0.35). Overall, 37% (157/421) of the patients screened positive for depression. Conclusion Two verbally asked questions for screening for depression would detect most cases of depression in general practice. The questions have the advantage of brevity As treatment is more likely when doctors make the diagnosis, these questions may have even greater utility.
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