Table 2.

Multivariate Analysis Controlling for Age, Sex, Ethnicity/Race, Body Mass Index, Transfer Status, Nonelective Surgical Status, Fracture Location, Open Fracture, and Total Operation Time for Each Cohort for Each Primary Outcome

Factor or Variable	Odds (95% Confidence Interval)
	RAI-Rev				mFI-5
	Normal	Frail	Very Frail	P	Prefrail	Frail	Severely Frail	P
Mortality	4.63 (2.26-9.47)	18.63 (9.22-37.63)	76.31 (37.77-154.20)	<0.001	1.56 (1.44-1.69)	2.19 (2.01-2.39)	4.28 (3.80-4.82)	<0.001
Major complications	2.05 (1.81-2.32)	3.79 (3.34-4.29)	8.78 (7.73-9.96)	<0.001	1.61 (1.53-1.68)	2.29 (2.17-2.40)	4.09 (3.78-4.42)	<0.001
Readmission	2.02 (1.79-2.27)	3.75 (3.33-4.23)	6.01 (5.31-6.79)	<0.001	1.69 (1.61-1.78)	2.28 (2.16-2.41)	3.69 (3.38-4.02)	<0.001
Wound complications	1.51 (1.30-1.75)	1.73 (1.48-2.02)	1.94 (1.62-2.32)	<0.001	1.43 (1.30-1.58)	1.77 (1.58-1.99)	2.07 (1.67-2.58)	<0.001

mFI-5 = 5-Item Modified Frailty Index; RAI-Rev = Revised Risk Analysis Index

Results are presented as odds ratio (OR) and 95% confidence interval.