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. 2022 Aug 2;22:325. doi: 10.1186/s12905-022-01910-y

Table 3.

Mean and standard deviation of visual analog and numerical categorical scales to quantify clinical pain at assessment and reassessment times

Clinical pain V.A.S N.C.S
IA mean ± SD TUS mean ± SD P* IA mean ± SD TUS mean ± SD P*
Before 6.70 (± 1.53) 7.22 (± 1.31) 0.6122 2.30 (± 0.86) 3.39(± 1.09) 0.0179
1 week 3.68 (± 2.77) 4.33 (± 3.85) 0.5470 1.35(± 0.93) 1.78 (± 1.80) 0.3483
1 month 4.00 (± 3.15) 4.89 (± 3.72) 0.3886 1.55 (± 1.32) 1.94 (± 1.73) 0.3871
3 months 4.00 (± 3.49) 4.78 (± 3.70) 0.4504 1.45 (± 1.32) 1.94 (± 1.73) 0.2786
6 months 4.10 (± 3.14) 4.50 (± 3.88) 0.6977 1.40 (± 1.10) 1.89 (± 1.81) 0.2840

Orthogonal contrasts in the mixed effects regression model

IA injection of local anesthetic, TUS therapeutic ultrasound, V.A.S visual analogue scale; N.C.S numerical categorical scale, SD standard deviation; P* p-value