. 2012 Dec;24(6):328–334. doi: 10.3969/j.issn.1002-0829.2012.06.004

Table 3. Cognitive functioning measures from the Wisconsin Card Sorting Test (WCST) and the Trail Making Test (TMT) in controls and in patients with schizophrenia who have C/C, C/T, and T/T BDNF C270T genotypes (mean [sd]).

Genotype	WCST number of categories achieved	WCST perseverative errors	TMT-A (seconds)	TMT-B (seconds)
Patients
C/C (n=158)	1.4 (2.9)	16.3 (7.7)	46.6 (17.9)	115.8 (47.8)
C/T (n=62)	1.4 (2.8)	15.9 (7.7)	46.3 (18.5)	116.7 (48.8)
T/T (n=4)	1.4 (2.9)	16.4 (7.7)	46.6 (18.0)	117.1 (49.2)
Controls (n=220)	2.2 (2.4)	10.2 (5.3)	32.6 (12.2)	56.6 (33.8)
F	10.36^a	13.68^a	26.62^a	16.56^a
p	0.038	0.026	0.006	0.002

^a Post-hoc SNK tests for all variables found that the three patient groups were all significantly different from controls but there were no significant differences between the three patient groups.