Table 2.

Cox proportional hazards model for 5-year all-cause mortality (HF, n = 182).

	Univariable model			Multivariable model*
	HR	95% CI	P-value	HR	95% CI	P-value
ID (heart failure guideline criteria)	2.14	0.98, 4.70	0.057	2.52	0.92, 6.90	0.073
Ferritin <300 ng/ml	1.05	0.30, 3.70	>0.9	4.79	1.43, 16.0	0.011
Ferritin <100 ng/ml	1.45	0.68, 3.08	0.334	1.12	0.48, 2.63	0.795
Ferritin <30 ng/ml	2.73	1.24, 6.02	0.013	2.51	0.75, 8.36	0.133
Ferritin <15 ng/ml	2.97	0.86, 10.3	0.086	2.73	0.64, 11.6	0.176
TSAT <20%	3.96	1.93, 8.12	<0.001	3.49	1.40, 8.72	0.007
Serum iron ≤13 μmol/L	3.08	1.64, 5.77	<0.001	1.82	0.91, 3.67	0.093
Serum iron ≤10 μmol/L	3.32	1.83, 6.03	<0.001	2.17	0.97, 4.83	0.059

ALT, alanine transaminase; CI, confidence interval; ID, iron deficiency; HF, heart failure; HR, hazard ratio; NT-proBNP, N-terminal pro-B-type natriuretic peptide; NYHA, new york heart association; TSAT, transferrin saturation.

^*Model adjusted for age (/5), ln(NT-proBNP), estimate glomerular filtration rate, body mass index, NYHA functional class.