Table 2.

Mean group performance on BACS measures and univariable and multivariable linear regression models for response status and BACS performance

BACS measure	R			NR			Unadjusted				Adjusted for age, gender and illness duration
	N	Mean	SD	N	Mean	SD	β	SE	95% CI	P value	β	SE	95% CI	P value
Verbal memory	53	38.89	10.66	50	36.9	13.04	−1.99	2.34	−6.63 to 2.66	0.398	−2.68	2.38	−7.41 to 2.05	0.263
Digit sequencing	53	17.87	4.95	50	17.98	4.09	0.11	0.90	−1.67 to 1.89	0.901	0.21	0.92	−1.61 to 2.03	0.818
Verbal fluency	53	30.45	9.04	50	31.68	9.82	1.23	1.86	−2.46 to 4.91	0.510	1.12	1.92	−2.70 to 4.92	0.563
Token motor	53	66.32	14.56	49	65.90	15.26	−0.42	2.95	−6.28 to 5.43	0.886	−1.05	2.93	−6.87 to 4.78	0.723
Symbol coding	53	47.30	11.31	50	45.46	11.83	−1.84	2.28	−6.37 to 2.68	0.421	−1.71	2.35	−6.37 to 2.95	0.469
Tower of London	53	16.04	4.46	50	16.44	3.83	0.40	0.82	−1.23 to 2.03	0.625	0.50	0.83	−1.16 to 2.15	0.552
z score composite	53	−2.00	1.39	49	−2.03	1.51	−0.03	0.29	−0.60 to 0.54	0.922	−0.04	0.30	−0.63 to 0.56	0.908
t score composite	53	29.91	13.81	49	29.27	14.99	−0.64	2.87	−6.32 to 5.05	0.825	−0.75	2.99	−6.69 to 5.19	0.804

BACS, Brief Assessment of Cognition in Schizophrenia; NR, antipsychotic non-responder; R, antipsychotic responder.