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Table 3 Correlations comparing the SPADI with different pain coping subscales (strategies) and joint irritability

From: The Shoulder Pain and Disability Index demonstrates factor, construct and longitudinal validity

  Diverting attention Reinterpreting Pain Sensations Coping Self Statements Ignoring Sensations Praying/Hoping Catastrophizing Increase Behavioural Act Joint Irritability VAS
Baseline         
Pain 0.16 0.11 0.10 -0.05 0.32** 0.39** 0.13 0.64**
Disability 0.29** 0.15 0.13 0.05 0.42** 0.41** 0.26** 0.63**
Total 0.24** 0.14 0.12 0.01 0.40** 0.42** 0.21* 0.67**
3-months         
Pain 0.07 -0.04 0.17 0.08 0.24* 0.41** 0.09  
Disability 0.22* 0.15 0.14 0.11 0.33** 0.50** 0.23*  
Total 0.15 0.06 0.17 0.10 0.30** 0.48** 0.16  
6-months         
Pain 0.14 0.07 0.23* 0.17 0.29** 0.41** 0.17  
Disability 0.19 0.09 0.27** 0.21* 0.29** 0.47** 0.15  
Total 0.17 0.08 0.26** 0.20* 0.31** 0.47** 0.17  
  1. ** Correlation is significant at the 0.01 level (2-tailed). * Correlation is significant at the 0.05 level (2-tailed). According to Cohen (1987) the effect sizes for correlation coefficients are r ≈ 0.10 is small effect with negligible practical importance, r ≈ 0.30 is a medium effect with moderate practical importance and r ≈ 0.50 is a large effect of crucial practical importance [22].