Categorical variables | Dichotomous variables | IRR = Kappa (95% LCL)a | Abstractor 1 vs. “gold standard” | Abstractor 2 vs. “gold standard” | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | Abstractor 1 vs. Abstractor 2 | Bias Index | N | Agreement (%) | Sensitivity (%) | Specificity (%) | Bias Index | N | Agreement (%) | Sensitivity (%) | Specificity (%) | Bias Index | |||
Stroke type | Infarct | 30 | 1.00 | 0 | 30 | 100 | 100 | 100 | 0 | 30 | 100 | 100 | 100 | 0 | |
ICH | 30 | 1.00 | 0 | 30 | 100 | 100 | 100 | 0 | 30 | 100 | 100 | 100 | 0 | ||
TIA | 30 | 0.65 (0.02) | −0.03 | 30 | 100 | 100 | 100 | 0 | 30 | 96.7 | 100 | 96.6 | 0.03 | ||
tPA therapy | Yes | 30 | 1.00 | 0 | 30 | 100 | 100 | 100 | 0 | 30 | 100 | 100 | 100 | 0 | |
Symptomatic hemorrhage | Yes | 30 | 1.00 | 0 | 30 | 100 | 100 | 100 | 0 | 30 | 100 | 100 | 100 | 0 | |
Disposition | Death | 30 | 1.00 | 0 | 30 | 100 | 100 | 100 | 0 | 30 | 100 | 100 | 100 | 0 | |
Home | 30 | 1.00 | 0 | 30 | 93.3 | 100 | 91.3 | 0.07 | 30 | 93.3 | 100 | 91.3 | 0.07 | ||
Inpatient rehabilitation | 30 | 1.00 | 0 | 30 | 100 | 100 | 100 | 0 | 30 | 100 | 100 | 100 | 0 | ||
Skilled nursing facility | 30 | 1.00 | 0 | 30 | 96.7 | 100 | 96.6 | 0.03 | 30 | 96.7 | 100 | 96.6 | 0.03 | ||
Initial presentation | MHH | 30 | 0.92 (0.76) | 0.03 | 30 | 100 | 100 | 100 | 0 | 30 | 96.7 | 95.4 | 100 | −0.03 | |
Continuous variables | IRR = ICC d (95%LCL) a | Abstractor 1 vs. “gold standard” | Abstractor 2 vs. “gold standard” | ||||||||||||
N | Abstractor 1 vs. Abstractor 2 | MD c (95%CI) b | N | Agreement (%) | Correlation (95%CI) b | MD c (95%CI) b | N | Agreement (%) | Correlation (95%CI) b | MD c (95%CI) b | |||||
Age (years) | 30 | 1.00 | 0 (0, 0) | 30 | 96.7 | 0.83 (0.65, 0.91) | 1.4 (−1.5, 4.4) | 30 | 96.7 | 0.83 (0.65, 0.91) | 1.4 (−1.5, 4.4) | ||||
Onset time (minutes) | 16 | 1.00 | 4.7 (−14.5, 5.3) | 16 | 93.8 | 1.00 | 9.4 (−10.6, -29.4) | 16 | 87.5 | 1.00 | 14.1 (−7.7, 35.8) | ||||
Arrival time (minutes) | 29 | 1.00 | 0 (0, 0) | 30 | 86.7 | 1.00 | −0.2 (−1.9, 1.5) | 29 | 89.7 | 1.00 | −0.2 (−2.1, 1.6) | ||||
tPA time (minutes) | 7 | −0.48 (−0.89) | NR | 7 | 100 | 1.00 | 0 (0, 0) | 7 | 57.1 | −0.49 (−0.90, 0.45) | NR | ||||
INR | 25 | 0.98 (0.96) | 0.02 (−0.02, 0.06) | 25 | 80 | 0.98 (0.97, 0.99) | −0.01 (−0.04, 0.02) | 26 | 73.1 | 0.39 (−0.00, 0.67) | 0.1 (−0.2, 0.4) | ||||
mRS on discharge | 23 | 1.00 | 0 (0, 0) | 23 | 95.6 | 0.98 (0.96, 0.99) | −0.04 (−0.13, 0.05) | 26 | 96.2 | 0.98 (0.96, 0.99) | −0.04 (−0.12, 0.04) |