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Table 3 Pearson correlations and separate hierarchical regression analyses showing the correlation between each independent variable and the dependent variables (SPADI and SPADI-F) as well as the variance in SPADI and SPADI-F score explained by each independent variable (n = 156)

From: Glenohumeral and scapulothoracic strength impairments exists in patients with subacromial impingement, but these are not reflected in the shoulder pain and disability index

Variables

SPADI

SPADI-F

Pearson’s R

∆R2-adj (adjusteda)

Pearson’s R

∆R2-adj (adjusteda)

Abd-ROM

−0.32***

2.0%*

−0.36***

3.4%*

Abd-Strength

−0.18

0.0%

−0.22*

0.2%

ER-Strength

−0.18

−0.1%

−0.22*

0.2%

pAbd-ROM

0.54****

18.3%****

0.48****

13.7%****

pAbd-Strength

0.28**

4.1%*

0.28**

5.1%**

pER-Strength

0.45***

10.2%***

0.42***

9.4%***

Pain-last-week

0.64****

25.0%****

0.55****

17.3%****

Tampa scale (TSK-11)

0.31***

4.5%**

0.24**

2.6%*

  1. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001
  2. aadjusted for Age, Gender, Affected Side, Sick Leave and Medication Use
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BMC Musculoskeletal Disorders

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