Table 7.
Scales | Local observer | Blinded observers | Total | ||
---|---|---|---|---|---|
1 | 2 | 3 | |||
VAS | 0.812* | 0.847* | 0.884* | 0.860* | 0.839* |
NRS | 0.869* | 0.835* | 0.895* | 0.912* | 0.883* |
SDS | 0.823* | 0.854* | 0.874* | 0.910* | 0.866* |
*p = 0.000. Interpretation of Spearman’s correlation coefficient: 0 – 0.35: low correlation; 0.35 – 0.7: moderate correlation; 0.7 – 1.0: high correlation.