Table 2: Results of the neuropsychological battery administered to patients with BD vs HCs.

TEST BD (n=30) HCs (n=32) P value
Span Forward
(m+SD)**		 5.8(+0.96) 6.5(+0.84) 0.0002
Span Backward
(m+SD)§		 4.9(+1.1) 5.5(+1.2) 0.06
Verbal Fluency Test (categories)
(m+SD)**		 44.6(+9.3) 51.1(+9.6) 0.0009
Verbal Fluency Test (letter)
(m+SD) §§		 35.3(+13) 40.6(+10.4) 0.08
Trial Making Test (B-A)
(m+SD) §§		 86.6(+32.2) 75.3(+15.8) 0.08
Matrices Score
(m+SD) §§		 45.89(+4.9) 47.7(+2.8) 0.08
n-Back Total
(m+SD)**		 0.81(+0.12) 9.89(+0.08) 0.0004
2-Back Test
(m+SD)*		 10.13(+1.8) 11.28(+1.6) 0.01
3-Back Test
(m+SD)§		 8.5(+2.4) 9.5(+1.5) 0.06

Values for categorical and continuous variables are expressed as n (%) and mean ± SD, respectively.
Standard deviations for continuous variables are shown in brackets.
Statistics: One-way ANOVA *p<.05; **p<.001; §p= 0.06 (borderline level of statistical significance); §§p= 0.08 (trend level of statistical significance)
Legend: BD=Bipolar Disorder patients; HCs=Healthy Controls