Table 2.
Breakdown of social communication difficulties on the La Trobe Communication Questionnaire.
| LCQ Score | LPA (n = 12) |
SD (n = 11) |
PNFA (n = 9) |
AD (n = 19) |
bvFTD (n = 26) |
Control (n = 31) |
F-Test | Post Hoc |
|---|---|---|---|---|---|---|---|---|
| Total (120) | 61.4 (15.0) | 64.9 (12.5) | 61.0 (9.0) | 61.5 (11.4) | 68.6 (17.8) | 47.1 (8.4) | *** | CN < LPA, SD, AD, bvFTD |
| Initiation/Flow | 22.0 (6.1) | 21.6 (6.0) | 22.8 (4.2) | 19.3 (4.6) | 23.2 (7.6) | 14.5 (3.2) | *** | CN < Patients |
| Disinhibition | 12.3 (3.3) | 13.7 (3.0) | 12.2 (2.4) | 12.5 (3.8) | 15.0 (4.6) | 11.1 (2.3) | ** | CN < bvFTD |
| Conversational Effectiveness |
13.4 (4.3) | 14.7 (4.3) | 13.9 (2.2) | 14.6 (3.2) | 13.7 (4.2) | 10.8 (3.6) | ** | CN < AD |
| Partner Sensitivity |
7.9 (2.9) | 8.6 (2.5) | 7.2 (1.7) | 9.2 (2.7) | 9.9 (3.2) | 6.7 (1.6) | *** | CN < AD, bvFTD |
Notes: Scores presented as means, with standard deviations in parentheses. The maximum test score provided in brackets, where higher scores denote poorer social communication function. AD = Alzheimer’s disease; bvFTD = behavioural variant of frontotemporal dementia; CN = controls; LCQ = La Trobe Communication Questionnaire; LPA = logopenic progressive aphasia; PNFA = progressive non-fluent aphasia. *** p < 0.0001; ** p < 0.01.