Table 2.
Summary measures of continuous arm numerical rating scale.
| Variable | Follow-up time | N | Mean (SD) | Min, Max |
|---|---|---|---|---|
| Arm NRS | Baseline | 33 | 6.5 (1.4) | 4, 9 |
| 1-month | 30 | 2.8 (2.5) | 0, 9 | |
| 3-month | 28 | 2.1 (2.0) | 0, 8 | |
| 6-month | 26 | 2.1 (2.5) | 0, 8 | |
| 12-month | 25 | 1.8 (2.0) | 0, 7 | |
| Change in arm NRSa | 1-month | 30 | 3.7 (2.5) | −1, 8 |
| 3-month | 28 | 4.4 (2.3) | −2, 8 | |
| 6-month | 26 | 4.3 (2.8) | −2, 8 | |
| 12-month | 25 | 4.6 (2.2) | 0, 9 | |
| % change in arm NRSa | 1-month | 30 | 57.4 (35.7) | −12.5, 100.0 |
| 3-month | 28 | 67.0 (30.3) | −33.3, 100.0 | |
| 6-month | 26 | 66.3 (42.2) | −33.3, 100.0 | |
| 12-month | 25 | 72.0 (30.3) | 0.0, 100.0 |
NRS = Numerical Rating Scale; SD = standard deviation; Min = minimum value; Max = maximum value.
a
From baseline to each follow-up time point (i.e., value at baseline minus value at each follow-up time point).