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Table 2 Brief Pain Inventory scores

From: Significant improvements in pain after a six-week physiotherapist-led exercise and education intervention, in patients with osteoarthritis awaiting arthroplasty, in South Africa: a randomised controlled trial

  Experimental Group
n = 35
Control Group
n = 39
Between-group difference over time
  Mean ± SD (out of 10) Mean ± SD (out of 10) Mean (95 % CI), ES (95 % CI)
Baseline
 Severity
 Interference
6.71 ± 2.32
6.75 ± 2.41
6.37 ± 2.16
6.44 ± 2.11
 
Week 6
 Severity
 Interference
3.99 ± 2.44*
3.13 ± 2.32**
6.09 ± 2.02
5.77 ± 2.07
2.44(0.6, 4.3), ES = 0.94(0.45, 1.41)
2.95(0.73, 5.2), ES = 1.2(0.7, 1.69)
Week 12
 Severity
 Interference
4.34 ± 2.86
4.23 ± 2.72**
6.05 ± 2.34
5.95 ± 2.35
2.05(0.51, 3.6), ES = 0.66(0.18, 1.12)
2.03(0.5, 3.6), ES = 0.68(0.2, 1.14)
Month 6
 Severity
 Interference
4.49 ± 2.85*
3.60 ± 2.63**
6.39 ± 2.30
5.98 ± 2.24
2.24(0.55, 3.9), ES = 0.74(0.26, 1.2)
2.69(0.66, 4.7), ES = 0.98(0.49, 1.45)
  1. *indicates a significant improvement in pain severity of the experimental group compared to control group
  2. **indicates a significant improvement in pain interference of the experimental compared to control group