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The average of visual analogue score (VAS) results.
| VAS score(mean ± SD) | Test statistics* | Source of difference ** | |
|---|---|---|---|
| 0 | 7.14 ± 0.64 | χ2 = 93.078P < 0.001 | 0–1, 0–3, 0–6, 0–12 (P < 0.001) |
| 1st month | 3.69 ± 0.60 | 1–3, 1–6, 1–12 (P < 0.001) | |
| 3rd month | 2.93 ± 0.59 | 3–6 (P = 0.029), 3–12 (P = 0.002) | |
| 6th month | 2.62 ± 0.49 | 6–12 (P = 0.317) | |
| 12th month | 2.48 ± 0.63 |
*: Friedman variance analysis test statistical values.
**: Bonferroni adjusted Wilcoxon signed-ranks test statistical values.
