Cognitive impairment in patients with bipolar disorder alone versus those with bipolar disorder comorbid with borderline personality disorder

Table 3 Comparison of repeatable battery for the assessment of neuropsychological status assessment, Stroop color word test, and Wechsler intelligence scale-revised scores in bipolar depression patients between group A and group B

Index	Group A (n = 43)	Group B (n = 45)	t	P value
RBANS
Immediate memory score	61.51 ± 9.21	67.02 ± 9.04	-2.832	0.006
Visual breadth score	65.12 ± 8.01	70.31 ± 8.44	-2.956	0.004
Speech function score	76.89 ± 9.15	83.32 ± 9.10	-3.304	0.001
Attention function score	83.80 ± 10.00	84.18 ± 10.14	-0.177	0.860
Delayed memory score	71.02 ± 9.14	70.43 ± 9.04	0.304	0.762
Total score	66.83 ± 9.02	72.23 ± 9.15	-2.787	0.007
Stroop color-word test
Single word time (s)	15.12 ± 2.09	13.02 ± 2.10	4.700	0.000
Single color time (s)	19.82 ± 2.43	18.20 ± 2.43	3.126	0.002
Double word time (s)	16.92 ± 2.30	14.15 ± 2.10	5.904	0.000
Double color time (s)	35.92 ± 7.09	29.94 ± 6.16	4.229	0.000
WAIS-RC
Verbal IQ score	90.11 ± 9.14	97.02 ± 9.40	-3.494	0.001
Performance IQ score	83.12 ± 4.88	89.02 ± 5.14	-5.517	0.000
Overall IQ score	91.34 ± 9.05	97.50 ± 10.10	-3.008	0.003

RBANS: Repeatable battery for the assessment of neuropsychological status; WAIS-RC: Wechsler intelligence scale-revised.