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Table 3 Comparison of the differences among groups for the values after surgical intervention (post Qx) and at the end of the treatment (FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; PRI, pain rating index)

From: Effect of transcutaneous electro-stimulation in postoperative rehabilitation pain treatment in thoracic surgery: a randomized clinical trial

Group

Variables

Mean (DT)

Mean difference (DT)

Control

PRI total

Initial (post surgery)

30.59 (8.96)

 − 2.24 (4.37)

Final

28.35 (7.61)

FVC

Initial (post surgery)

51.81 (11.14)

7.86 (6.65)

Final

59.68 (9.72)

FEV1

Initial (post surgery)

55.00 (11.12)

6.54 (5.59)

Final

61.54 (9.56)

Experimental

PRI total

Initial (post surgery)

25.71 (12.42)

 − 14.03 (8.71)

Final

11.69 (7.53)

FVC

Initial (post surgery)

56.66 (8.54)

27.11 (14.07)

Final

83.77 (14.04)

FEV1

Initial (post surgery)

58.37 (9.72)

28.68 (14.05)

Final

87.06 (13.41)

Placebo

PRI total

Initial (post surgery)

26.92 (11.12)

 − 4.05 (4.50)

Final

22.86 (9.33)

FVC

Initial (post surgery)

59.83 (11.14)

8.34 (4.86)

Final

68.17 (10.78)

FEV1

Initial (post surgery)

63.54 (14.14)

7.92 (8.07)

Final

71.46 (11.40)