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. Author manuscript; available in PMC: 2012 Jul 22.
Published in final edited form as: Arch Gen Psychiatry. 2010 Feb;67(2):168–177. doi: 10.1001/archgenpsychiatry.2009.184

Table 4.

Group Differences for Heritable Neuropsychological Measures

Broad Bipolar Phenotype Bipolar I Disorder 1st Degree Relatives
Trait1 χ 2 p-value Effect Size χ 2 p-value Effect Size χ 2 p-value Effect Size
Letter Fluency 0.99 0.319 0.109 0.68 0.408 0.101
Semantic Fluency 4.34 0.037 0.228 5.83 0.016 0.298 0.34 0.561 0.062
Digit Symbol Coding 27.67 1.4×10−07 0.597 30.74 3.0×10−08 0.718 16.68 4.4×10−05 0.447
Trails A 5.05 0.025 0.246 3.01 0.083 0.213
CPT Hits 0.76 0.384 0.095 0.22 0.637 0.058
CPT Catch Trials 4.04 0.044 0.220 3.11 0.078 0.216
Digit Span Forward 3.63 0.057 0.208 2.10 0.147 0.178
Stroop 0.39 0.533 0.068 0.15 0.696 0.048
Digit Span Backward 2.04 0.153 0.156 1.25 0.264 0.136
Letter-Number Span 17.87 2.4×10−05 0.473 16.14 5.9×10−05 0.505 13.05 3.0×10−04 0.393
Spatial Delayed Response 2.60 0.107 0.176 4.67 0.031 0.266
Object Delayed Response 46.29 1.0×10−11 0.797 42.36 7.6×10−11 0.865 27.15 1.9×10−07 0.579
CVLT Learning 22.14 2.5×10−06 0.529 26.13 3.2×10−07 0.656 2.46 0.117 0.168
Digit Symbol Recall 0.64 0.424 0.087 0.10 0.757 0.038
Facial Memory Immediate 44.36 2.7×10−11 0.777 42.40 7.4×10−11 0.865 44.42 2.7×10−11 0.761
Facial Memory Delay 37.53 9.0×10−10 0.707 37.89 7.5×10−10 0.810 33.57 6.9×10−09 0.650
Matrix Reasoning 1.71 0.190 0.143 2.43 0.119 0.191
PCET Correct 0.75 0.385 0.095 0.94 0.333 0.118
Trails B 3.63 0.057 0.208 3.54 0.060 0.231
1

Statically significant group differences, after controlling the false discovery rate, are bolded