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Table 2 Approximate numbers of false positives and negatives anticipated in PHQ diagnoses by sample

From: Norms for Zung’s Self-rating Anxiety Scale

PHD Diagnosis / Original SampleTrue PositivesFalse Positives
Positive Clinical (n = 63)61–621–2
Positive Community (n = 32)275
 True NegativesFalse Negatives
Negative Clinical (n = 78)42–4335–36
Negative Community (n = 178)16117