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. Author manuscript; available in PMC: 2015 Jan 1.
Published in final edited form as: JAMA Surg. 2014 Jan;149(1):83–89. doi: 10.1001/jamasurg.2013.4244

Table 3.

Change in function at 12 months compared to pre-injury baseline

Beta
Coefficient*
Lower
95% CI
Upper
95% CI
CG versus control
group
0.67 0.10 1.22
Age (in years) −0.02 −0.06 0.03
Male versus female 0.53 −0.03 1.09
Co-morbidity (Charlson
Comorbidity Index
Score52, points ranging
from 2 to 12)
−0.03 −0.19 0.13
ISS (range 1–41 points) 0.02 −0.03 0.06
Length of Stay
(in days, ranging from 1
to 61)
−0.08 −0.12 −0.04
Any surgery versus no
surgery
0.49 −0.22 1.20
Any complication
versus no complication
0.51 −0.31 1.32
White versus non-white 0.88 0.07 1.70
Pre-injury ADL count
(Range 0 to 5 ADL
abilities, where higher=
better baseline function)
−0.47 −0.89 −0.05
Discharge to post-acute
rehabilitation
.05 −.69 .80

GC=geriatric consult; ISS=injury severity score; ADL=activity of daily living

*

The effect of each variable is expressed as a change in count of ADL abilities at 1 year compared to baseline. A positive effect (whose 95% confidence intervals do not cross zero) indicates that each increase in the variable is associated with functional recovery; a negative effect indicates association with decline.