Table 2.

Association between digital Clock Drawing Test composite scores and total cerebral brain volume.

dCDTa composite scoreb	Effect size	Standard error	P valuec
dCDT_LMid	0.079	0.017	3.2×10−6
dCDT_LMdd	0.083	0.017	1.1×10−6
dCDT_LMrd	0.061	0.017	2.9×10−4
dCDT_VRie	0.098	0.017	1.4×10−8
dCDT_VRde	0.099	0.017	1.2×10−8
dCDT_VRre	0.093	0.017	6.4×10−8
dCDT_PASif	0.079	0.017	3.5×10−6
dCDT_PASdf	0.084	0.017	8.8×10−7
dCDT_PASrf	0.073	0.017	1.7×10−5
dCDT_DSfg	0.071	0.017	2.5×10−5
dCDT_DSbg	0.067	0.017	6.5×10−5
dCDT_Trails Ah	−0.074	0.017	1.2×10−5
dCDT_Trails Bh	−0.080	0.017	3.0×10−6
dCDT_SIMi	0.084	0.017	9.4×10−7
dCDT_HVOTj	0.094	0.017	6.1×10−8
dCDT_BNT30k	0.075	0.017	9.9×10−6
dCDT_FASl	0.083	0.017	1.5×10−6
dCDT_FAS-Animall	0.062	0.017	2.2×10−4

^adCDT: digital Clock Drawing Test.

^bThe models were adjusted for age, sex, and education.

^cBonferroni correction was used to adjust for multiple testing, and significant associations were claimed if P<.05/18 (2.8×10⁻³), where 18 is the number of tests performed. All P values were significant.

^dWechsler Memory Scale Logical Memory—Immediate Recall (LMi), Delayed Recall (LMd), and Recognition (LMr).

^eVisual Reproduction—Immediate Recall (VRi), Delayed Recall (VRd), and Recognition (VRr).

^fPaired Associate Learning—Immediate Recall (PASi), Delayed Recall (PASd), and Recognition (PASr).

^gWechsler Adult Intelligence Scale Digit Span—Forward (DSf) and Backward (DSb).

^hTrail Making Test A (Trails A) and B (Trails B).

ⁱSIM: Similarities.

^jHVOT: Hooper Visual Organization Test.

^kBNT30: Boston Naming Test—30 item version.

^lVerbal fluency test (FAS and FAS-Animal).