Table 3.

Classification of patients with eventual GAD and MDE.

	Generalized Anxiety Disorder (GAS-Q Positive 73/1,238 = 5.9%)		Major Depressive Episode (DSQ Positive 125/1,385 = 9.0%)
	Patients' HADS-A ≥ 8	GPs' CGI-S ≥ 3	Patients' HADS-D ≥ 8	GPs' CGI-S ≥ 3
Sensitivity / Specificity	0.89 / 0.75	0.52 / 0.85	0.80 / 0.88	0.79 / 0.81
Classification	% (95% CI)	% (95% CI)	% (95% CI)	% (95% CI)
True positive disorder	5.3 (4.1–6.5)*	3.1 (2.1–4.1)	7.2 (5.8–8.6)	7.1 (5.7–8.5)
False positive disorder	23.5 (21.1–25.9)*	14.1 (12.2–16.0)	10.9 (9.3–12.5)	17.3 (15.3–19.3)*
Observed disordered	28.8 (26.3–31.3)*	17.2 (15.1–19.3)	18.1 (16.1–20.1)	24.4 (22.1–26.7)*
True positive healthy	70.6 (68.1–73.1)	80.0 (77.8–82.2)*	80.1 (78.0–82.2)*	73.7 (71.4–76.0)
False positive healthy	0.6 (0.2–1.0)	2.8 (1.9–3.7)*	1.8 (1.1–2.5)	1.9 (1.2–2.6)
Observed healthy	71.2 (68.7–73.7)	82.8 (80.7–84.9)*	81.9 (79.9–83.9)*	75.6 (73.3–77.9)
Total rightly classified	75.9 (73.5–78.3)	83.1 (81.0–85.2)*	87.3 (85.5–89.1)*	80.8 (78.7–82.9)
Total wrongly classified	24.1 (21.7–26.5)*	16.9 (14.8–19.0)	12.7 (10.9–14.5)	19.2 (17.1–21.3)*

*The difference shows a statistical significance of p ≤ 0.05