Table 2.
Multivariable logistic regression analysis for iron deficiency performed, iron deficiency diagnosed, and iron supplementation performed
| ID performed | ID diagnosed | IS performed | ||||
|---|---|---|---|---|---|---|
| Odds ratio (95% CI) | P‐value | Odds ratio (95% CI) | P‐value | Odds ratio (95% CI) | P‐value | |
| Gender, male | — | — | 0.55 (0.75–1.03) | 0.075 | — | — |
| Age | 0.991 (0.985–0.998) | 0.013 | — | — | — | — |
| BMI | 0.80 (0.67–0.96) | 0.015 | — | — | — | — |
| Smoking | 0.65 (0.48–0.87) | 0.004 | — | — | — | — |
| Beta‐blocker | 1.44 (1.13–1.83) | 0.003 | — | — | — | — |
| VKA | — | — | — | — | 2.40 (1.48–3.88) | 0.0004 |
| Recruitment site | ||||||
| Hospitalization | 1 (ref) | — | — | 1 (ref) | ||
| Consultation | 0.68 (0.56–0.82) | <0.0001 | — | — | 1.89 (1.06–3.39) | 0.032 |
| Cardiac rehabilitation | 0.94 (0.71–1.25) | 0.673 | — | — | 2.95 (1.34–6.49) | 0.007 |
| Current decompensation | — | — | 2.83 (2.09–3.83) | <0.0001 | — | — |
| LVEF, % | — | — | 0.98 (0.96–0.99) | 0.0006 | — | — |
| Haemoglobin | — | — | 0.76 (0.71–0.83) | <0.0001 | 0.88 (0.78–0.99) | 0.031 |
| NT‐proBNP or BNP quartiles | ||||||
| 1st | — | — | — | — | 1 (ref) | |
| 2nd to 3rd | — | — | — | — | 1.23 (0.60–2.51) | 0.574 |
| 4th | — | — | — | — | 2.39 (1.09–5.21) | 0.029 |
BMI, body mass index; BNP, B‐type natriuretic peptide; CI, confidence interval; ID, iron deficiency; IS, iron supplementation; LVEF, left ventricular ejection fraction; NT‐proBNP, N‐terminal prohormone of B‐type natriuretic peptide; VKA, vitamin K antagonist.