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Table 5 Evolution of clinical pain during local anesthetic injection treatment sessions measured using the visual analog and categorical scales

From: Therapeutic ultrasound versus injection of local anesthetic in the treatment of women with chronic pelvic pain secondary to abdominal myofascial syndrome: a randomized clinical trial

IA

VAS–mean (SD)

P*

NCS–mean (SD)

P*

1ª session

6.70 (± 1.53)

2.30 (± 0.86)

2ª session

4.75 (± 2.79)

0.1125

1.35 (± 0.93)

0.0011

3ª session

3.70 (± 3.15)

0.3635

1.05 (± 0.94)

0.2963

4ª session

4.30 (± 3.03)

 < .0001

1.60 (± 1.39)

0.0563

  1. Orthogonal contrasts in the mixed-effects regression model
  2. IA injection of local anesthetic, TUS therapeutic ultrasound, SD standard deviation, P* p value