An evaluation of the maintenance to abstinence (MTA) program in achieving abstinence in opioid users and improving mental health and quality of life

Table 5 Comparison between completers and non-completers (group) on change in DASS, WHOQOL-8 and K10 from entry to exit (time)

	Completers		Non-completers		Time effect			Completion effect			Time * completion effect
	Entry	Exit	Entry	Exit	DF	F	P	DF	F	P	DF	F	P
	Mean (SD)	Mean (SD)	Mean (SD)	Mean (SD)	DF	F	P	DF	F	P	DF	F	P
DASS
Depression	20.5 (8.61)	7.8 (6.30)	20.2 (10.01)	12.8 (10.42)	(1,90)	82.37	< 0.001	(1,90)	2.51	0.117	(1,90)	5.35	0.023
Anxiety	16.5 (8.97)	6.4 (5.49)	16.9 (10.77)	12.3 (9.94)	(1,90)	51.64	< 0.001	(1,90)	4.05	0.047	(1,90)	7.02	0.010
Stress	20.8 (7.64)	10.2 (6.91)	21.5 (9.23)	16.2 (9.92)	(1,90)	54.66	< 0.001	(1,90)	5.81	0.018	(1,90)	6.12	0.015
WHOQOL-8
Total score	20.8 (5.68)	29.3 (5.69)	19.2 (6.67)	24.9 (8.57)	(1,91)	80.42	< 0.001	(1.91)	6.88	0.010	(1,91)	3.27	0.074
Quality	1.7 (0.85)	2.9 (0.84)	1.6 (1.03)	2.3 (1.16)	(1,90)	55.87	< 0.001	(1.90)	5.96	0.017	(1,90)	3.25	0.075
Health	1.4 (0.96)	2.6 (0.92)	1.1 (0.95)	2.1 (1.15)	(1,90)	73.58	< 0.001	(1,90)	5.35	0.023	(1,90)	1.10	0.298
Energy	1.5 (1.07)	2.4 (0.94)	1.4 (1.05)	1.9 (1.26)	(1,90)	30.49	< 0.001	(1,90)	3.08	0.083	(1,90)	2.49	0.118
Money	1.6 (1.12)	2.5 (1.15)	1.5 (1.21)	2.0 (1.33)	(1,90)	26.15	< 0.001	(1,90)	1.47	0.229	(1,90)	1.55	0.216
Daily living	1.8 (1.17)	2.7 (0.92)	1.4 (1.14)	2.3 (1.14)	(1,90)	37.06	< 0.001	(1,90)	5.84	0.018	(1,90)	0.01	0.935
Self-satisfaction	1.2 (0.97)	2.6 (0.98)	1.1 (0.87)	2.1 (1.28)	(1,90)	81.20	< 0.001	(1,90)	3.26	0.074	(1,90)	2.32	0.131
Relationships	1.6 (1.00)	2.6 (0.90)	1.3 (1.21)	2.2 (1.17)	(1,90)	52.19	< 0.001	(1,90)	3.94	0.050	(1,90)	0.16	0.692
Living place	1.9 (1.11)	3.0 (0.79)	1.8 (1.50)	2.6 (1.22)	(1,90)	39.33	< 0.001	(1,90)	1.71	0.194	(1,90)	1.12	0.292
K10^a
Total score	28.1 (8.00)	19.3 (5.91)	31.0 (8.43)	23.7 (8.84)	(1,70)	44.30	< 0.001	(1,70)	6.03	0.017	(1,70)	0.41	0.525

Significant data points are highlighted using italic typeface (significant P values)
DF degrees of freedom (variance), F F ratio, P p value for F test
^aK10 date is missing 5 responses from entry and 28 responses from exit

ISSN: 1940-0640