Current major depressive syndrome measured with the Patient Health Questionnaire-9 (PHQ-9) and the Composite International Diagnostic Interview (CIDI): results from a cross-sectional population-based study of adults in Germany

Table 2 Percentages of overlap of MDS and non-MDS cases according to PHQ-MDS¹and CIDI-MDS²

	% (95% CI)
PHQ-MDS classified as CIDI-MDS	54.5 (42.7-65.9)
Non-PHQ-MDS classified as non-CIDI-MDS	97.5 (96.6-98.1)
CIDI-MDS classified as PHQ-MDS	37.9 (27.8-49.1)
Non-CIDI-MDS classified as non-PHQ-MDS	98.7 (98.2-99.1)

¹current major depressive syndrome according to the diagnostic algorithm of the Patient Health Questionnaire-9 (PHQ-9).
²2-week major depressive syndrome according to the CIDI information about symptom recency.

ISSN: 1471-244X