Skip to main content

Table 3 Inferential statistics per intention to treat

From: Effects of a back school-based intervention on non-specific low back pain in adults: a randomized controlled trial

Variable

Group (N)

Pre-test

Post-test

p value

Mean ± SD

Median (IQR)

Mean ± SD

Median (IQR)

VAS (mm)

CG (20)

53.3 ± 9.8

55 (10)

38.9 ± 9.8

40 (19)

p = 0.004

EG (20)

53.6 ± 9.1

52.5 (10)

26.1 ± 10.5

25 (10)

RMDQ

CG (20)

5.4 ± 3.9

4 (7)

4.8 ± 2.9

4.8 (5)

p < 0.001

EG (20)

6.6 ± 4.3

6 (5)

2.8 ± 2.6

2 (3)

fSF-36

CG (20)

43.1 ± 7.5

43.1 (9.9)

43.9 ± 6.7

44.4 (7.4)

p < 0.001

EG (20)

39.4 ± 8.9

37.5 (11.9)

46.7 ± 6.2

47.3 (8.2)

pSF-36

CG (20)

44.3 ± 7.7

44.5 (13.5)

47.4 ± 8.3

46.6 (13.4)

p = 0.779

EG (20)

46.1 ± 9.8

46.3 (10)

49.9 ± 8.2

54.5 (13)

TSK-11

CG (20)

26.7 ± 5

25.5 (7)

26.1 ± 4.7

25 (8)

p < 0.001

EG (20)

25.2 ± 5.7

24.5 (7)

19.6 ± 6.3

19 (9)

  1. N Sample, SD Standard deviation, IQR Interquartile Range, CG Control group, EG Experimental group, VAS Visual Analogue Scale, RMDQ Roland Morris disability questionnaire, fSF-36 physical Short-Form Health Survey-36, pSF-36 psychosocial Short-Form Health Survey-36, TSK-11 Tampa Scale of Kinesiophobia