Table 7.

Frailty Association with Log Delta V among cases with Multiple Rib Fractures (N=128)

	Univariate		Multivariate ±		Multivariate + frailty
	Coefficient	p-value	Coefficient	p-value	Coefficient	p-value
Frailty	−0.214	0.01			−0.188	0.04
Age	−0.119	0.10	−0.120	0.11	−0.002	0.21
Male Gender	−0.033	0.64	−0.033	0.65	−0.018	0.79
Comorbidity	−0.051	0.65	−0.053	0.66	−0.002	0.99
High BMI*	−0.002	0.98	−0.010	0.86	0.001	0.99

^*BMI normal and underweight used as reference.

^±Multivariate includes comorbidity count (0–2 vs. 3+), age group (<55 vs. 55+), gender (men vs. women), and BMI (normal/overweight vs. other)