Table 1.

Characteristics of Patients with Catatonic Schizophrenia and Other Schizophrenia

		Catatonic Schizophrenia	Other Schizophrenia
Number of cases		43	525
Percentage		100.0	100.0
Sex	Males	48.8	64.2
	Females	51.2	35.8
Paternal age	<35	58.1	61.9
	35+	41.9	38.1
Maternal age	<35	72.1	81.3
	35+	27.9	18.7
Socioeconomic status	High	30.2	34.1
	Medium	27.9	33.3
	Low	41.9	32.6
Parental history of admission for schizophrenia	Any	16.3	9.7
	None	83.7	90.3
Age of first admission, any diagnosis, in years	<20	41.9	33.5
	20–24	23.3	30.1
	25–29	25.6	22.9
	30+	9.3	13.5
History of 1 or more suicide attempts	Present	44.2	25.0
	Absent	55.8	75.0