Table 1.

Descriptive Statistics of the Study Sample

	Patient group		Control group		P value
Gender	n	%	n	%	Chi-square
Male	34	64.2	27	57.4	.4927
Female	19	35.8	20	42.6	.4927
					Mann-Whitney U-test
Mean age	39.7		35		.0348
Mean duration of education, y	12		17.4		<.0001
Marital status, %					Chi-square
Single	71.7		34		.0002
Married	13.2		31.9		.0242
Long-term RS	9.4		25.5		.0324
Divorced	5.7		8.5		.5772
Psychiatric history, %
Sch. in close family	15.1		2.1		.0237
Sch. among distant rel.	1.9		0		.3439
Other in whole family	30.2		2.1		.0002
Negative	52.8		95.7		<.0001
Mean duration of illness, y	13.6		—		—
Alcohol use, %
Never	43.4		19.1		.0095
Rare	28.3		21.3		.4181
Occasional	17		46.8		.0013
Regular	11.3		12.8		.8243
Drug use, %
Never tried	81.1		91.5		.1363
Rare	1.9		4.3		.4883
Occasional	1.9		2.1		.9316
Regular	0		0		—
Occasional in the past	15.1		2.1		.0237
Smoking, %
Never	39.6		66		.0085
Rare	5.7		2.1		.3682
Occasional	1.9		10.6		.0659
Regular	52.8		21.3		.0012
Suicid attempt, %
0	64.2		100		<.0001
1–2	22.7		—		.0005
3–5	11.3		—		.0174
>5	1.9		—		.3439
Somatic diseases (PP)
DZ of the musculoskeletal system and connective tissue	1		—		.3439
DZ of the circulatory system	10		1		.0076
DZ of the respiratory system	1		2		.4883
DZ of the genitourinary system	2		1		.6301
DZ of the digestive system	3		2		.7476
Endocrine, nutritional, and metabolic DZ	6		2		.1937
Certain infectious and parasitic DZ	1		—		.3439
DZ of the nervous system	1		.2859		.3439

Abbreviations: DZ, disease; n, sample size; PP, per person; RS, relationship; Sch., schizophrenia; y, in years.