Table 3 Statistics of 5-D itch scale according to numerical rating scale (NRS)
From: Transformation of 5-D itch scale and numerical rating scale in chronic hemodialysis patients
NRS categories | 5-D itch scale | |||
|---|---|---|---|---|
n | Mean ± SD | Min | Max | |
No pruritus (0) | 100 | 6.4 ± 1.5 | 5 | 9 |
Mild (1–3) | 133 | 9.6 ± 2.2 | 5 | 17 |
Moderate (4–6) | 107 | 13.1 ± 3.2 | 7 | 21 |
Severe (7–8) | 39 | 15.7 ± 4.4 | 9 | 25 |
Very severe (≥9) | 30 | 19.5 ± 4.4 | 5 | 25 |