Table 2.

Associations estimated by Cox proportional hazards models with death within follow-up for the full sample (N = 195)

Variable	Mortality
	Hazard ratio (95% CI)
	Unadjusted model	Adjusted model
Age	1.08 (1.03–1.12)	1.06 (1.02–1.11)
Ward	1.09 (0.67–1.79)	1.70 (0.97–3.00)
CCI	1.47 (1.31–1.64)	1.33 (1.17–1.52)
CFS	1.70 (1.39–2.08)	1.54 (1.24–1.91)
NEWS2	1.14 (1.04–1.24)	1.12 (1.03–1.23)
FI-lab*100	1.04 (1.02–1.05)	1.03 (1.00–1.05)

The adjusted model included all six variables listed in the first column as covariates. Ward placement (acute geriatric medicine or internal medicine) was coded as a categorical variable with acute geriatric medicine as reference

CCI Charlson Comorbidity Index; CFS Clinical Frailty Scale; CI confidence interval; FI-lab*100 Frailty index comprised of 14 routine blood tests multiplied by a factor of 100; NEWS2 New Early Warning Score 2, maximum value during hospital stay