Table 1.

Sample characteristics and bivariate survival analysis (Kaplan-Meier).

Variable		Descriptive	Probability to be readmitted	95% CI	p
Age: Mean (SD; range)		27.6 (6.6; 18-45)			0.03
18-23 years old: N (%)		19 (32.8)	0.54	0.48 to 0.60
24-29 years old: N (%)		20 (34.5)	0.32	0.25 to 0.39
>29 years old: N (%)		19 (32.8)	0.13	0.09 to 0.16
Gender					0.04
Male: N (%)		39 (67.2)	0.60	0.55 to 0.65
Female: N (%)		19 (32.8)	0.19	0.13 to 0.25
Caucasian: N (%)		51 (87.9)	0.51	0.47 to 0.55	0.97
Single: N (%)		46 (79.3)	0.53	0.49 to 0.57	0.48
Level of education: N (%)					0.83
Primary education		13 (23.2)	0.67	0.54 to 0.80
High school certificate		21 (37.5)	0.29	0.24 to 0.34
Vocational training		9 (16.1)	0.33	0.19 to 0.47
University graduate		13 (23.2)	0.35	0.25 to 0.45
First-degree relatives with psychiatric		7 (12.1)	0.33	0.30 to 0.36	0.93
history: N (%)
DUP: Mean (SD; range)		14.7 (19.8; 01-83)			0.77
≤12 months: N (%)		36 (62.1)	0.43	0.38 to 0.48
>12 months: N (%)		22 (37.9)	0.53	0.45 to 0.61
PANSS Positive subscale: Mean (SD)		26.0 (5.7)			<0.001
	≤25	11 (19.0)	0.39	0.30 to 0.48
Percentile N (%):	25-75	38 (65.5)	0.47	0.40 to 0.54
	≥75	9 (15.5)	0.80	0.69 to 0.91
Cannabis urine analysis					0.021
Positive: N (%)		22 (37.9)	0.55	0.49 to 0.61
Negative: N (%)		38 (62.1)	0.49	0.42 to 0.56
Alcohol blood/urine analysis					0.773
Positive: N (%)		4 (6.9%)	0.46	0.41 to 0.51
Negative: N (%)		54 (93.1)	0.51	0.44 to 0.58
DALI cannabis/cocaine subscale					0.002
Positive: N (%)		29 (50.0)	0.60	0.55 to 0.65
Negative: N (%)		29 (50.0)	0.55	0.42 to 0.68
DALI alcohol subscale					0.330
Positive: N (%)		11 (19.0)	0.41	0.32 to 0.50
Negative: N (%)		47 (81.0)	0.49	0.44 to 0.54

CI: confidence interval; DUP: duration of untreated psychosis.