Table 2. The reliability (Kappa for items 1-11 and ICC for total score) and sensitivity to detect change (MDD) of the NIHSS in an uncontrolled clinical setting.
Item | Physicians vs. Nurses | Nurses vs. Nurses |
---|---|---|
1a. Level of Consciousness | 0.26 (95% CI:0 - 0.54)* | 0.54 (95% CI:0.26 - 0.83) |
1b. LOC Questions | 0.54 (95% CI:0.28 - 0.79) | 0.32 (95% CI:0.04 - 0.59) |
1c. LOC Commands | 0.74 (95% CI:0.47 - 1.00) | 0.65 (95% CI:0.33 - 0.98) |
2. Best Gaze | 0.08 (95% CI:0 - 0.36)* | 0.45 (95% CI:0.18 - 0.72) |
3. Visual | 0.43 (95% CI:0.24 - 0.63) | 0.39 (95% CI:0.12 - 0.65) |
4. Facial Palsy | 0.24 (95% CI:0.02 - 0.46) | 0.52 (95% CI:0.22 - 0.83) |
5a. Motor Arm: Left Arm | 0.53 (95% CI:0.30 - 0.76) | 0.80 (95% CI:0.58 - 1.00) |
5b. Motor Arm: Right Arm | 0.39 (95% CI:0.16 - 0.62) | 0.62 (95% CI:0.40 - 0.84) |
6a. Motor Leg: Left Leg | 0.29 (95% CI:0.07 - 0.50) | 0.72 (95% CI:0.51 - 0.93) |
6b. Motor Leg: Right Leg | 0.41 (95% CI:0.16 - 0.65) | 0.67 (95% CI:0.43 - 0.91) |
7. Limb Ataxia | 0* | 0.34 (95% CI:0.08 - 0.60) |
8. Sensory | 0.17 (95% CI:0 - 0.43)* | 0.35 (95% CI:0.06 - 0.64) |
9. Best Language | 0.68 (95% CI:0.40 - 0.96) | 0.78 (95% CI:0.50 - 1.00) |
10. Dysarthria | 0.35 (95% CI:0.06 - 0.64) | 0.43 (95% CI:0.17 - 0.70) |
11. Extinction and Inattention | 0.17 (95% CI:0 - 0.46)* | 0.26 (95% CI:0 - 0.55)* |
Total Score | 0.78 (95% CI:0.58 - 0.89) | 0.75 (95% CI:0.55 - 0.87) |
MDD95 of Total Score | ± 9.64 Points | ± 10.73 Points |
MDD80 of Total Score | ± 6.31 Points | ± 7.02 Points |
MDD70 of Total Score | ± 5.10 Points | ± 5.67 Points |
MDD60 of Total Score | ± 4.14 Points | ± 4.61 Points |
MDD50 of Total Score | ± 3.32 Points | ± 3.69 Points |
MDD40 of Total Score | ± 2.58 Points | ± 2.87 Points |
MDD30 of Total Score | ± 1.90 Points | ± 2.11 Points |
MDD20 of Total Score | ± 1.25 Points | ± 1.39 Points |
MDD10 of Total Score | ± 0.62 Points | ± 0.69 Points |
* Unreliable
MDD subscript is level of confidence (%). Reliability coefficients equal to zero indicate 'unreliable'.