Table 3 Inter-rater reliability for Emergency Department (ED) evaluation, imaging, stroke onset time, and t-PA related data.
Variable (Item Number) | Dichotomous response option | N | PI* | Kappa (95% LCL)† | BI‡ |
|---|---|---|---|---|---|
Date & time ED arrival (4.1) | Not documented (missing) | 90 | 0.63 | 0.59 (0.40) | 0.07 |
Date & time first seen by doctor (4.2) | Not documented (missing) | 90 | 0.21 | 0.44 (0.26) | 0.04 |
Stroke team consult (4.3) | Yes | 90 | -0.12 | 0.30 (0.10) | 0.01 |
Date & time stroke team consult (4.1) | Not documented (missing) | 40 | 0.20 | 0.02 (-0.20) | 0.40 |
Stroke/TIA diagnosed in ED (4.6) | Yes | 90 | 0.86 | 0.26 (-0.08) | 0.03 |
Type of initial brain image (5.1) | CT | 104 | 0.89 | 0.71 (0.41) | -0.03 |
Date & time initial brain image (5.2) | Not documented (missing) | 104 | -0.08 | 0.32 (0.15) | 0.17 |
Date & time image results first known (5.5) | Not documented (missing) | 103 | -0.46 | 0.25 (0.10) | 0.29 |
Intracranial hemorrhage on image (5.6) | Yes | 103 | -0.71 | 0.84 (0.70) | 0.00 |
Stroke onset time documented (6.1) | Yes – Specific time | 104 | -0.40 | 0.51 (0.33) | 0.13 |
Yes – Estimated time | 104 | -0.17 | 0.22 (0.06) | -0.25 | |
No | 104 | -0.44 | 0.48 (0.30) | 0.12 | |
Source of onset time data if specific (6.2b) | Witnessed | 38 | -0.37 | 0.21 (-0.05) | 0.26 |
Patient self-report | 38 | -0.45 | 0.06 (-0.11) | 0.39 | |
Not documented (missing) | 38 | -0.26 | 0.00 | -0.74 | |
Reasons for non-treatment with tPA (8.1) | Time | 86 | -0.83 | 0.78 (0.54) | 0.03 |
Not documented (missing) | 86 | 0.59 | 0.54 (0.33) | -0.10 |