Prevalence of depressive and anxiety disorders in Chinese gastroenterological outpatients

Table 1 Baseline characteristics and comparison of subjects with and without depressive disorders and/or anxiety disorders n (%)

	Screened subjects (n = 1995)	Frequency and percentage of subjects with and without depressive disorders and/or anxiety disorders according to the MINI (n = 674)
Characteristic		With depressive disorders and/or anxiety disorders (n = 323)	Without depressive disorders and/or anxiety disorders (n = 351)
Sex				χ2	P value
Male	914 (45.81)	29 (39.94)	173 (49.29)	6.116	0.013
Female	1081 (54.19)	194 (60.06)	178 (50.71)
Occupation				χ2	P value
Laborer/attendant	282 (14.14)	52 (16.10)	46 (13.11)	5.595	0.588
Office worker	227 (11.38)	38 (11.76)	45 (12.82)
Businessman	139 (6.97)	25 (7.74)	25 (7.12)
Teacher	110 (5.51)	17 (5.26)	19 (5.41)
Manager	244 (12.23)	36 (11.15)	48 (13.68)
Farmer	264 (13.23)	43 (13.31)	40 (11.40)
Soldier	9 (0.45)	0 (0)	3 (0.85)
Other	720 (36.09)	112 (34.67)	124 (35.33)
Age groups, yr		mean ± SD	mean ± SD	t	P value
		43.01 ± 14.80	46.12 ± 15.74	3.330	0.001b
18-29	377 (18.90)	69 (21.36)	85 (24.22)
30-44	659 (33.03)	115 (35.60)	114 (32.48)
45-59	562 (28.17)	93 (28.80)	95 (27.07)
60-	397 (19.90)	46 (14.24)	57 (16.24)

The last four columns present the characteristics and the comparison of the two groups (outpatients with and without depressive disorders and/or anxiety disorders). There are statistically significant differences between the two groups in sex (^aP < 0.05 vs with depressive disorders group) and age (^bP < 0.01 vs with depressive disorders group) by χ² test and t test, respectively. MINI: Mini International Neuropsychiatric Interview.