Table 2.

Cross-national comparison of lifetime prevalences of psychiatric disorders in different population groups

	General population sample			Obese individuals not seeking treatment			Obese individuals seeking bariatric surgery
Geographical Location	US	Germany	Italy	US	Germany	Italy	US	Germany	Italy
Authors (sample size, N)	Kessler et al. [39] (2005) (N=9280)	Herpertz et al. [41] (2005) (N=174)	Girolamo et al. [42] (2006) (N=4712)	Simon et al. [38] (2006) (N=2330)	Herpertz et al. [41] (2005) (N=128)		Rosenberger et al. [28] (2006) (N=174); Kalarchian et al. [29] (2007) (N=288); Mitchell et al. [32] (2012) (N=199)	Mühlhans et al. [31] (2009) (N=146)	Mauri et al. [30] (2008) (N=282)
Instrument Used	CIDI*	CIDI	CIDI	CIDI	CIDI		SCID**	SCID	SCID
Any psychiatric disorder (%)	46.4	38.5	18.3	-	48.4		57.2 (Range=36.8–68.6)	72.6	37.6
Any mood disorder (%)	20.8	16.1	11.2	22.0	14.8		37.4 (Range=22.4–5.5)	54.8	22
Major Dep. Dis.	16.6	15.0	10.1	18.6	11.7		31.9 (Range=14.9–42.0)	50.7	19.1
Dysthymia	2.5	0.6	3.4	-	3.1		3.1 (Range=0.0–5.7)	8.2	3.1
Any anxiety disorder (%)	28.8	8.6	11.1	12.3	16.4		28.2 (Range=15.5–37.5)	21.2	18.1
Social phobia	12.1	2.3	2.1	-	2.4		7.7 (Range=6.0–9.4)	6.2	3.2
Specific phobia	12.5	5.2	5.7	-	12.5		8.8 (Range=5.7–12.6)	7.5	5.3
Panic disorder	4.7	0.6	1.6	7.1	0.8		19.4	-	8.5
Post-Traumatic Stress Dis.	6.8	2.3	2.3	-	3.9		11.5 (Range=11.1–11.8)	8.9	1.8
General Anxiety Dis.	5.7	1.2	1.9	6.5	1.6		0.45 (Range=0.0–0.9)	-	1.1
Any substance use disorder(%)	14.5	19.0	1.0	12.8	29.7		24.5 (Range=5.2–35.7)	15.1	1.1
Alcohol abuse/dependency	18.6	4.6	1.1	-	4.7		26.0 (Range=4.0–40.7)	11.0	0.7
Other drug abuse/dependency	10.9	20.7	-	-	25.8		8.6 (Range=2.3–16.0)	6.2	0.4
Any Eating Disorder (%)	-	5.7	-	-	7.04		19.6 (Range=13.1–29.5)	50	12.8

Data for non-treatment seeking obese group was not found for Italian population

^*CIDI: Composite International Diagnostic Interviews

^**SCID: Structured Clinical Interview of DSM-IV