Table 1. Bland and Altman method comparing each real-time (RT) observation method with image (IMG) scores.
Observation type | Bias | Upper limit | Lower limit |
---|---|---|---|
RT-interval10 | −0.09 | 0.46 | −0.63 |
RT-interval5 | −0.11 | 0.44 | −0.65 |
RT-interval2 | −0.14 | 0.43 | −0.71 |
RT-point10 | −0.07 | 0.49 | −0.63 |
RT-point5 | −0.08 | 0.47 | −0.63 |
RT-point2 | −0.09 | 0.50 | −0.68 |
Bias is the mean difference between RT and IMG Rat Grimace Scale scores. Upper and lower limits of agreement are mean difference ± 2 SD.