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Table 2 Results of two sample paired t-test for pain outcomes (N = 31)

From: Pain self-management plus activity tracking and nurse-led support in adults with chronic low back pain: feasibility and acceptability of the problem-solving pain to enhance living well (PROPEL) intervention

Pain outcomes

Visit 1

Mean (SD)

Visit 7

Mean (SD)

Mean

Difference (d)

p-value

Cohen’s D

BPI Worst Pain

5.25 (1.80)

3.61 (2.64)

-1.68

0.003

0.57

BPI Least Pain

2.19 (2.10)

1.65 (2.30)

-0.55

0.239

0.21

BPI Average Pain

4.19 (1.55)

2.61 (2.11)

-1.61

< 0.001

0.77

BPI RightNow Pain

3.19 (2.22)

2.23 (2.25)

-0.97

0.020

0.44

BPI Pain Severity

3.70 (1.63)

2.52 (2.23)

-1.20

0.004

0.56

BPI Total Pain

34.06 (18.77)

24.07 (22.19)

-10.23

0.004

0.54

BPI Pain Interference

2.75 (2.15)

2.00 (2.16)

-0.77

0.020

0.43

PROMIS Pain Intensity

52.12 (4.59)

46.54 (8.87)

-5.61

0.002

0.62

  1. Abbreviations: BPI, brief pain inventory; PROMIS, patient-reported outcomes measurement information systems; SD, standard deviation