Table 3.

Multivariable linear regression for frailty outcome measures

	SPPB at discharge Beta (95% CI); P-value	SARC-F at 30 days Beta (95% CI); P-value
Intervention	1.52 (0.75, 2.28); P < 0.001	−0.74 (1.38, −0.11); P = 0.02
Baseline frailty score	0.75 (0.62, 0.89); P < 0.001	0.36 (0.23, 0.49); P < 0.001
Hospitalization days	−0.04 (−0.07, −0.004); P = 0.03	0.07 (0.04, 0.10); P < 0.001

A positive beta denotes stronger SPPB, whereas a negative beta denotes stronger SARC-F. CI, confidence interval; SPPB, short physical performance battery.