Test features of the GAD-7 and GAD-2 scales for detecting anxiety disorders in primary care*

DiagnosisTest and cutoff scoreSensitivity (95% CI)Specificity (CI)+LR−LR
*GAD-7 and GAD-2  =  Generalized Anxiety Disorder 7-item and 2-item scales, respectively; LR  =  likelihood ratio; diagnostic terms defined in glossary. LRs calculated from data in article.
Generalised anxiety disorderGAD-7 ⩾892% (83 to 97)76% (73 to 79)3.80.11
GAD-2 ⩾386% (76 to 93)83% (80 to 85)5.10.17
Panic disorderGAD-7 ⩾882% (70 to 90)75% (72 to 78)3.30.24
GAD-2 ⩾376% (64 to 85)81% (79 to 84)4.00.30
Social anxiety disorderGAD-7 ⩾878% (66 to 88)74% (71 to 77)3.00.30
GAD-2 ⩾370% (57 to 81)81% (78 to 83)3.70.37
Post-traumatic stress disorderGAD-7 ⩾876% (65 to 85)75% (72 to 78)3.00.32
GAD-2 ⩾359% (48 to 70)81% (78 to 84)3.10.51
Any anxiety disorderGAD-7 ⩾877% (70 to 82)82% (80 to 85)4.30.28
GAD-2 ⩾365% (57 to 71)88% (85 to 90)5.40.40