Table 6 The multiple regression with parsimonious model demonstrated variable factors associated with supraspinatus: middle deltoid (S:D) ratio

Shoulder position

-0.05

-0.7, -0.03

0.11

< 0.001*

Body weight (kg)

-0.02

-0.3, -0.00

0.01

0.020*

Scapular plane (degrees)

-0.04

-0.8, -0.00

0.02

0.042*

Constant

4.6

3.15, 6.04

0.74

< 0.001*

Adjusted R-square

0.0545

P-value from the F-test

< 0.0001*