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. 2016 Jan 29;66(643):e65–e70. doi: 10.3399/bjgp16X683461

Table 4.

Criterion validity for both sexes using CIDI as gold standard for depression diagnosis

Key questions Sensitivity %, females/males Specificity %, females/males Correctly classified %, females/males Positive likelihood ratio, females/males
A 84/75 66/90 69/89 2.49/7.44
B 56/25 97/100 90/95.70 15.90/-

A = answer ‘yes’ to either or both key questions. B = answer ‘yes’ to either or both key questions and ‘yes’ to help question.