TABLE IV.

Association of Tear Geometry Variables with Fatty Degeneration in the Supraspinatus and Infraspinatus

Variable	Adjusted Odds Ratio (95% Confidence Interval)*	Cumulative R2 (Selection Order)†	P Value
Supraspinatus fatty degeneration
Distance category‡	0.11 (0.05, 0.24)	0.43 (1)	<0.0001
Tear length	1.40 (1.15, 1.71)	0.46 (2)	0.0007
Distance category‡	0.10 (0.04, 0.23)	0.43 (1)	<0.0001
Tear width	1.35 (1.10, 1.66)	0.45 (2)	0.004
Infraspinatus fatty degeneration
Distance category‡	0.50 (0.28, 0.89)	0.36 (2)	0.02
Tear length	1.68 (1.38, 2.03)	0.34 (1)	<0.0001
Distance category‡	NS
Tear width	2.17 (1.79, 2.64)	0.38 (1)	<0.0001
Fatty degeneration in both supraspinatus and infraspinatus
Distance category‡	0.27 (0.15, 0.48)	0.45 (2)	<0.0001
Tear length	1.56 (1.32, 1.84)	0.40 (1)	<0.0001
Distance category‡	0.30 (0.17, 0.55)	0.47 (2)	<0.0001
Tear width	1.72 (1.42, 2.08)	0.43 (1)	<0.0001

^*Adjusted odds ratios reflect the increased odds of having fatty degeneration, after adjusting for other variables in the model. For continuous variables, adjusted odds ratios were expressed in units of 5 mm. For distance category, adjusted odds ratios were expressed in units of one category. NS = not significant.

^†Generalized coefficient of determination of the fitted model. The independent variable that is the first in selection order has the strongest association with the dependent variable. Note that the second variable contributes little more information to the model in addition to that provided by the first variable.

^‡Measured on a 0-2 ordinal scale, where 0 = 0 mm distance, 1 = >0 to 10 mm distance, and 2 = >10 mm distance.