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Table 1 2 × 2 table of the single item screener using the “depressive mood” definition and the “major depressive disorder” definition of the 9-item Patient Health Questionnaire (PHQ-9) as reference standard

From: Diagnostic utility of a one-item question to screen for depressive disorders: results from the KORA F3 study

  Single item screener Total
PHQ-9 “depressive mood” Positive Negative  
Abnormal 406 475 881
Normal 130 2139 2269
PHQ-9 “major depressive disorder”    
Abnormal 169 35 204
Normal 367 2579 2946
Total 536 2614 3150
  1. PHQ-9: 9-item depression module of the Patient Health Questionnaire.