TABLE 2.
Summary of Kappa Values (±95% Confidence Interval, CI) and Mean % of Agreement (±95% CI) for Different Aspects of Study 1 and 2
| Study and Question | Kappa Value | 95% CI | Mean % of Agreement | 95% CI |
|---|---|---|---|---|
| 1: Recognition of astrocytic tau immunoreactivities | 0.55 | 0.433–0.645 | 63.8 | ±7.5 |
| 2A: Recognition of presence of ARTAG | 0.48 | 0.457–0.900 | 91.1 | ±5.1 |
| 2A: Recognition of astrocytic tau immunoreactivities associated with FTLD-tau | 0.25 | 2.89x10−16–0.374 | 73.1 | ±6.3 |
| 2A: Recognition of SP ARTAG | 0.61 | 0.468–0.739 | 81.8 | ±7.02 |
| 2A: Recognition of SE ARTAG | 0.72 | 0.584–0.828 | 87.2 | ±5.9 |
| 2A: Recognition of GM ARTAG | 0.37 | 0.288–0.536 | 83.1 | ±5.6 |
| 2A: Recognition of WM ARTAG | 0.44 | 0.323–0.551 | 79.5 | ±6.05 |
| 2A: Recognition of PV ARTAG | 0.58 | 0.442–0.672 | 78.1 | ±6.4 |
| 2B: Semiquantitative scoring | 0.40 | 0.341–0.445 | 50.4 (65.9) | ±3.8 (4.6) |
| 2A+B: Overall assessment of ARTAG | 0.60 | 0.534–0.650 | 82.3 | ±2.4 |
SP, subpial; SE, subependymal; GM, gray matter; WM, white matter; PV, perivascular.