Table 5.

Comparison of results of cognitive function measurement 3 months after the first measurement in patients with schizophrenia without metabolic syndrome.

Tools	Task	Difference in mean values	Standard error in mean difference (SE)	95% confidence interval for mean difference (CI)		Student’s t-test
				Bottom limit	Upper limit	t	df	p
Stroop Test	Trial 1—time [s]	−1.04	2.92	0.60	−2.27	−1.745	23	0.094
	Trial 2—time [s]	1.06	7.50	1.53	−2.11	0.693	23	0.495
	Trial 3—time [s]	−0.92	10.44	2.13	−5.33	−0.433	23	0.669
Trail Making Test	Test A [s]	3.69	8.38	1.71	0.16	2.159	23	0.041
	Test B [s]	−0.73	16.97	3.46	−7.90	−0.210	23	0.835
Verbal Fluency Test	Animals	1.42	2.84	0.58	0.22	2.442	23	0.023
	Objects starting with letter “K”	0.17	2.10	0.43	−0.72	0.389	23	0.701
	Sharp objects	0.83	2.06	0.42	−0.04	1.985	23	0.059
Digit Span	Forward	−0.25	1.11	0.23	−0.72	−1.100	23	0.283
	Backward	0.21	1.10	0.23	−0.26	0.926	23	0.364
	All	−0.21	1.84	0.38	−0.99	−0.554	23	0.585

Source: own research.