Table 1.

Comparison of Catatonic Patients, Non-Catatonic Patients (HCs) With Respect to Demographic and Clinical Characteristics

	Catatonic (n= 51)		Non-catatonic (n = 55)		Statistics*
	N	Percent	N	Percent	χ 2	P-value
Men	13	25.5	15	27.3	0.04	.835
Diagnosis of schizophrenia	16	31.4	19	33.9	0.79	.778
Currently smoking	2	3.9	5	8.9	1.14	.287
On medication	48	94.1	53	96.4	0.30	.586
On antipsychotic	34	66.7	47	85.5	5.18	.023
FGAs	11	21.6	19	34.5	2.20	.138
SGAs	23	46.0	28	50.9	0.25	.615
	Mean	SD	Mean	SD	t	P-value
Age	32.8	8.7	33.9	10.2	−0.60	.553
Body Mass Index	22.4	3.1	23.1	3.4	−1.00	.321
PANSStot	81.4	2.4	57.0	18.6	7.02	<.001
PANSSpos	18.6	6.0	15.8	7.4	2.19	.031
	25th percentile	75th percentile	25th percentile	75th percentile	Z	P-value
Duration of illness	3.0	146.0	27.0	157.0	−1.51	.132
OLZeq	0	6.3	2.0	10.0	−2.55	.011
CK(U/l)	43.0	686.0	39.0	118.0	−3.09	.002
Cortisol (pg/ml)	14.6	20.6	13.7	20.8	−0.10	.922
ACTH (pg/ml)	20.4	41.4	24.7	64.0	−2.58	.010
IgG (g/l)	9.0	12.7	9.2	12.3	−0.79	.427
C3 (g/l)	0.7	0.9	0.7	1.0	−1.50	.133
C4 (g/l)	0.2	0.3	0.2	0.2	−0.61	.539
BFCRS	14.0	22.0	0	1.0	−9.05	<.001
PANSSneg	14.0	26.0	7.0	15.0	−6.11	<.001

Note: FGAs, first-generation antipsychotics; SGAs, second-generation antipsychotics; PANSSpos, Positive subscale score of the Positive and Negative Syndrome Scale; PANSSneg, Negative subscale score of the Positive and Negative Syndrome Scale; PANSStot, total score of the Positive and Negative Syndrome Scale; BFCRS, Bush-Francis catatonia rating scale; CK, creatine kinase; ACTH, adrenocorticotropic hormone; IgG, immunoglobulin G; C3, complement component 3; C4, complement component 4; OLZeq, olanzapine equivalent dose.

*Bonferroni adjustment for the 21 comparisons to a critical α of P < .0024.