Table 2.

Differences in psychiatric and legal characteristics between male (n = 115) and female (n = 61) forensic psychiatric inpatients with substance use disorders.

	Male patients	Female patients	Statistics
	M (SD) or n, (%)	M (SD) or n, (%)
Psychiatric characteristics
ICD-10 diagnosis: Mental and behavioral disorders due to use of			Fisher's exact test = 19.421, p < 0.001a, Cramer-V = 0.345
...Alcohol	33 (32%)	6 (10%)
...Opioids	6 (6%)	6 (10%)
...Cannabinoids	10 (10%)	3 (5%)
...Cocaine	5 (5%)	0
...Other stimulants, including caffeine	5 (5%)	9 (15%)
...Multiple drug use	44 (43%)	36 (60%)
Personality disorders
No	44 (73%)	75 (73%)	Fisher's exact test = 18.294, p < 0.001b, Cramer-V = 0.333
Dissocial	0	10 (100%)
Emotionally unstable	13 (22%)	5 (5%)
Histrionic	1 (1%)	2 (1%)
Other	2 (3%)	11 (11%)
Age at first inpatient treatment, years	26.75 (11.94)	25.37 (10.78)	t(157) = −0.727, p = 0.468
Previous psychiatric treatments	1.85 (3.21)	4.51 (7.99)	z = −3.032, p = 0.002c, dCohen =0.494
Suicide attempts	18 (18%)	19 (34%)	Chi2(1)= 5.189, p = 0.031d, Cramer-V = 0.182
Legal characteristics
Age at first conviction, years	20.59 (8.83)	25.08 (9.08)	t(160) = 3.085, p = 0.002e, dCohen = 0.504
Age at first detention, years	24.09 (8.87)	29.51 (9.43)	t(157) = 3.612, p < 0.001f, dCohen = 0.597
Number of criminal offenses	8.90 (9.50)	5.95 (4.03)	z = −2.629, p = 0.009g, dCohen = 0.424
Total penalty, months	78.33 (56.85)	57.46 (36.64)	t(155) = −2.819, p = 0.005h, dCohen = −0.413

According to Benjamini and Hochberg corrected significance level:

^a p = 0.0056,

^b p = 0.0111,

^c p = 0.0222,

^d p = 0.0444,

^e p = 0.0278,

^f p = 0.0167,

^g p = 0.0389,

^hp = 0.0333.