Table 3.
Spearman’s Correlations for Variables of Interest with Proxy Bias and Quality of Life.
| Rho | p | ||
|---|---|---|---|
| aDegree of Proxy bias | Relationship type+ | −.453 | .078 |
| Time since PPA symptoms | −.458 | .056 | |
| Depression score b | −.428 | .087 | |
| Proxy-rated behavior | .188 | .455 | |
| Cognition | −.385 | .115 | |
| Self-rated QOL | Relationship type+ | −.497 | .050 * |
| Depression score b | −.397 | .114 | |
| Proxy-rated behavior | −.249 | .320 | |
| Cognition | −.01 | .967 | |
| Proxy-rated QOL | Partner years of education | .142 | .599 |
| Depression score b | −.086 | .743 | |
| Proxy-rated behavior | −.584 | .011 * | |
| Cognition | .52 | .027 * |
N = 18 unless otherwise indicated (and includes adult-child-raters).
aSelf-rated minus proxy-rated quality of life.
bN = 17 for the depression correlations as the depression scale was not administered with one participant.
Significant P-values where α = ≤.05 are as indicated by *.
*Significant P-values following Holm-Bonferroni correction are as indicated by shaded cell.
Note. Relationship Type: Where 0 = adult-child-rater and 1 = partner-rater (N = 16 as two dyads were not classified as either and were not included in this variable). Depression Score: Geriatric Depression Scale-15. 46 Higher scores indicate more symptoms of depression. Proxy-Rated Behavior: Cambridge Behavioural Inventory (Revised edition). 27 Higher scores indicate a greater number of abnormal neuro-psychiatric or behavioral symptoms. Cognition (/Disease severity): Addenbrooke’s Cognitive Examination third edition. 26 A cognitive screening test suitable for people with PPA. Higher scores indicate better cognitive function.