Validation of screening tools for common mental health disorders in the methadone maintenance population in Hanoi, Vietnam

Table 4 Comparison of Test Characteristics of Screeners Between Subgroups

Characteristic	Depression (PHQ-9 Score > =10)					Anxiety (GAD-7)
Characteristic	Prevalence	Sensitivity	P-Value*	Specificity	P-value*	Prevalence	Sensitivity	P-Value*	Specificity	P-value*
Age			0.565		0.529			1.000		0.578
20–29	6.3	100		86.7		0.0	–		93.8
30–39	11.3	100		94.0		5.3	87.5		90.1
40–49	11.5	90.5		91.9		3.8	100.0		85.1
50+	4.8	100		90.0		0.0	–		88.1
Sex at birth			1		1			1.000		1.000
Male	10.3	95.1		0.0		3.8	93.3		87.4
Female	33.3	100		100.0		33.3	100.0		100
HIV			1		0.628			1.000		0.013
Negative	8.6	96.3		0.0		3.2	90.0		89.8
Positive	17.2	93.3		90.3		6.9	100.0		79
Marital Status			1		0.125			1.000		0.837
Single	9.3	100		88.2		4.0	100.0		86.1
Married or partnered	10.9	93.8		93.5		4.1	91.7		87.9
Widowed, Divorced, or Separated	9.4	100		86.2		3.1	100.0		87.1
Education			0.408		0.161			0.500		0.066
< High School	9.1	100		93.5		3.7	100.0		90
High School Diploma**	11.1	87.5		88.3		2.1	100.0		82.3
College or beyond	16.2	100		96.8		13.5	80.0		93.8
Employment			1		0.051			0.375		0.107
Working at least part-time	9.7	93.8		93.3		3.0	100.0		88.7
Unemployed	15.6	100		83.3		9.4	83.3		79.3
Retired	0	0		100.0		0.0	–		100
MINI-Major Depressive Episode								0.125		0.000
No	–	–	–	–	–	0.6	50.0		92.7
Yes	–	–	–	–	–	33.3	100.0		21.4
MINI-Generalized Anxiety Disorder			0.545		0.156
No	7.3	92.9		92.1		–	–	–	–	–
Yes	87.5	100		50.0		–	–	–	–	–

ISSN: 1471-244X