TABLE 2.
Executive functioning and serum levels of zinc in euthymic bipolar disorder patients
| Correlation against serum levels of zinc | ||||
|---|---|---|---|---|
| Neurocognitive test | r | p‐value | n | |
| Principal component 1 (PC1) | 0.06 | .65 | 62 | |
| PC1 (adjusted for IQ) | −0.08 | .51 | 62 | |
| Principal Component 2 (PC2) | −0.05 | .71 | 62 | |
| PC2 (adjusted for IQ) | −0.08 | .52 | 62 | |
| Loading on PC1 | ||||
| CWIT, condition 3 inhibition | 0.22 | 0.20 | .10 | 65 |
| CWIT, condition 3 inhibition (adjusted for IQ) | −0.08 | .51 | 65 | |
| VFT, category fluency, total correct | 0.22 | 0.00 | .98 | 68 |
| VFT, the second interval (adjusted for IQ) | −0.09 | .49 | 68 | |
| TMT combined number + letter sequencing | 0.25 | −0.15 | .23 | 61 |
| TMT condition 4 number + letter switching (adjusted for IQ) | −0.11 | .42 | 61 | |
| Loading on PC2 | ||||
| CWIT inhibition/switching vs. combined naming + reading | 0.18 | 0.12 | .34 | 65 |
| CWIT inhibition/switching vs. inhibition (adjusted for IQ) | −0.08 | .55 | 65 | |
| VFT Letter fluency, Total correct | 0.14 | 0.05 | .68 | 68 |
|
VFT percent repetition errors (adjusted for IQ) |
−0.08 | .49 | 68 | |
| TMT switching vs. visual scanning | 0.27 | 0.13 | .34 | 57 |
| TMT switching vs. combined number + letter sequencing (adjusted for IQ) | −0.09 | .48 | 57 | |