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Table 4 Clinician diagnosis of depression and the PHQ diagnosis of depression at varied thresholds of diagnosis

From: Recognition of depression by primary care clinicians in rural Ethiopia

Target parameter Point estimate and confidence Interval Detection criteria
   PHQ9 (5+) PHQ9 (10+) PHQ2 (3+) DSM 5
Prevalence % 42.6 11.5 11.4 3.4
95% CI 39.6, 45.7 9.6, 13.5 9.5, 13.4 2.2, 4.7
Sensitivity % 3.0 6.0 5.2 2.9
95% CI 1.4, 4.6 1.6, 10.3 1.1, 9.3 −3.0, 8.9
Specificity % 100.0 99.3 99.2 98.8
95% CI 99.4, 100.0 98.5, 99.8 98.4, 99.7 97.9, 99.4
PPV % 100.0 53.8 46.2 7.7
95% CI 75.3, 100.0 25.1, 80.8 19.2, 74.9 0.2, 36.0
NPV % 58.0 89.0 89.0 96.7
95% CI 54.8, 61.1 86.9, 90.8 86.9, 90.8 95.4, 97.7
  1. PHQ Patient Health Questionnaire