Observer Rating Scale: item–total score correlations (n = 30)
| Item no. | rs | p value |
|---|---|---|
| 1 | 0.863 | 0.001 |
| 2 | 0.693 | 0.001 |
| 3 | 0.651 | 0.001 |
| 4 | 0.801 | 0.001 |
| 5a | 0.301 | 0.053 |
| 5b | 0.763 | 0.001 |
rs = Spearman rank-order correlation coefficient for correlation between item score and total observer rating score at first clinic visit.