Table 3

Multivariate regression with categorical Functional Comorbidity Index (FCI) as predictor of change in Western Ontario Rotator Cuff score (r²=0.317282)

Parameter	β estimate	SE	95% Confidence limits	p Value
Intercept	−855.03	487.58	−1826.56, 116.50	0.08
FCI category
One	23.43	167.73	−310.77, 357.64	0.89
Two	154.70	179.39	−202.74, 512.14	0.39
Three	−404.04	217.08	−836.58, 28.51	0.07
Four	−174.39	204.86	−582.58, 233.80	0.40
Five or more	−27.26	231.83	−489.20, 434.68	0.91
Age (decade)	82.90	71.86	−60.28, 226.09	0.25
Gender	132.78	123.80	−113.90, 379.47	0.29
Surgical intervention	−533.21	119.92	−772.16, −294.26	<0.01