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Pearson Correlation of PIQ Item Bank T-Scores with Each Other and Itch Severity
| Pearson r | ||||||
|---|---|---|---|---|---|---|
|
| ||||||
| Item bank | NRS-itch | |||||
|
| ||||||
| Item bank | 1 | 2 | 3 | 4 | Worst itch | Average itch |
|
| ||||||
| 1 | 1.00 | — | — | — | 0.56 | 0.60 |
| 2 | 0.86 | 1.00 | — | — | 0.65 | 0.66 |
| 3 | 0.87 | 0.84 | 1.00 | — | 0.63 | 0.65 |
| 4 | 0.78 | 0.80 | 0.73 | 1.00 | 0.60 | 0.62 |
Abbreviations: NRS, numerical rating scale; PIQ, Patient-Reported Outcomes Measurement Information System Itch Questionnaire.
