Table 5.

Longitudinal correlations (p-value) over six months across the battery of cognitive tests.

Test	Face/Face	Face/Telephone	Telephone/Face	Telephone/Telephone
Mean (SD) correlation across 12 cognitive tests	0.67 (0.12)	0.50 (0.21)	0.66 (0.21)	0.74* (0.09)
Telephone Interview for Cognitive Status – Modified	0.57 (0.006)	0.09 (0.69)	0.88 (<0.0001)	0.70 (0.0003)
Letter Fluency	0.88 (<0.0001)	0.33 (0.12)	0.79 (<0.0001)	0.71 (0.0002)
Category Fluency-Animals	0.85 (<0.0001)	0.71 (0.0001)	0.85 (<0.0001)	0.88 (<0.0001)
CVLT List A	0.63 (0.002)	0.75 (<0.0001)	0.45 (0.03)	0.83 (<0.0001)
CVLT List B	0.51 (0.02)	0.27 (0.19)	0.24 (0.27)	0.77 (<0.0001)
CVLT Short Delay – Free recall	0.71 (0.0002)	0.54 (0.006)	0.80 (<0.0001)	0.71 (0.0002)
CVLT long delay – Free recall	0.74 (<0.0001)	0.52 (0.01)	0.82 (<0.0001)	0.82 (<0.0001)
CVLT Short Delay – Cued recall	0.69 (0.0004)	0.47 (0.02)	0.74 (<0.0001)	0.63 (0.002)
CVLT long delay – Cued recall	0.53 (0.01)	0.62 (0.001)	0.83 (<0.0001)	0.82 (<0.0001)
CVLT Recognition	0.48 (0.02)	0.29 (0.17)	0.52 (0.01)	0.69 (0.0004)
Digits Span Forward	0.73 (0.0001)	0.61 (0.002)	0.36 (0.10)	0.76 (<0.0001)
Digits Span Backward	0.68 (0.0006)	0.51 (0.01)	0.51 (0.01)	0.57 (0.007)
Perceived memory function	0.66 (0.0008)	0.82 (<0.0001)	0.77 (<0.0001)	0.68 (0.0005)
Women’s Health Initiative Insomnia Rating Scale	0.64 (0.001)	0.87 (<0.0001)	0.83 (<0.0001)	0.65 (0.001)
MOS Short Form 12
Physical Component	0.80 (<0.0001)	0.62 (0.002)	0.82 (<0.0001)	0.86 (<0.0001)
Mental Component	0.77 (<0.0001)	0.59 (0.003)	0.48 (0.02)	0.60 (0.004)
Geriatric Depression Scale-Short Form	0.55 (<0.01)	0.27 (0.20)	0.65 (<0.001)	0.43 (0.05)

Note: CVLT = California Verbal Learning Test; MOS = Medical Outcome Study; * Statistically distinct (p<0.05) from the mean correlation for the telephone to face-to-face sequence via a Scheffe multiple comparisons test