TABLE 2.

SCL‐90 scores and two‐by‐two post hoc comparison results among the three groups (p < .05, Bonferroni correction)

Items	Mean ± SD			p value from ANOVA	Post hoc
	MAUD	HUD	NC		MAUD versus NC	HUD versus NC	MAUD versus HUD
Somatization	0.68 ± 0.69	0.44 ± 0.31	0.38 ± 0.50	.162	0.21	1	0.46
Obsessive–compulsive	0.95 ± 0.76	0.58 ± 0.33	0.57 ± 0.63	.078	0.14	1	0.16
Interpersonal sensitivity	0.86 ± 0.80	0.59 ± 0.41	0.47 ± 0.60	.124	0.14	1	0.48
Depression	0.83 ± 0.81	0.75 ± 0.49	0.45 ± 0.57	.140	0.18	0.40	1
Anxiety	0.75 ± 0.71	0.52 ± 0.37	0.30 ± 0.41	.027*	0.02 a	0.53	0.49
Hostility	1.25 ± 1.05	0.52 ± 0.53	0.62 ± 0.85	.014*	0.06	1	0.02 b
Terror	0.42 ± 0.60	0.27 ± 0.26	0.22 ± 0.32	.279	0.38	1	0.72
Paranoia	0.92 ± 0.96	0.42 ± 0.38	0.41 ± 0.52	.023*	0.04 a	1	0.06
Psychoticism	0.60 ± 0.62	0.48 ± 0.34	0.42 ± 0.48	.501	0.75	1	1
Addition item	0.87 ± 0.67	0.75 ± 0.44	0.43 ± 0.52	.032*	0.03 a	0.20	1

Abbreviations: HUD, heroin use disorder; MAUD, methamphetamine use disorder; NC, normal controls.

^aNC < MAUD.

^bHUD < MAUD.

^*Significant difference (p < .05).