Factor | OR (95% CI)b | P valuec |
---|
Ultrasound examination | 53.7 (28.6 to 83.5) | < 0.001 |
NT-proBNP | 14.3 (8.1 to 29.4) | < 0.001 |
Orthopnea | 6.9 (1.9 to 18.39 | < 0.001 |
Rales | 5.1 (1.5 to 12.8) | 0.014 |
Troponin T | 2.1 (1.3 to 4.6) | 0.018 |
petCO2 | 7.6 (2.9 to 19.6) | < 0.001 |
HF medications | 2.7 (1.3 to 5.1) | 0.031 |
Asthma/COPD medications | 0.12 (0.03 to 0.42) | 0.028 |
Previous HF | 7.4 (2.3 to 20.4) | < 0.001 |
Fever | 0.17 (0.06 to 0.49) | 0.017 |
- aOR, odds ratio; petCO2, partial pressure of end-tidal carbon dioxide; NT-proBNP, amino terminal pro-brain natriuretic peptide; HF, heart failure; COPD, chronic obstructive pulmonary disease; CI, confidence interval. bUnivariable screening was performed on clinical, historical and biochemical variables to identify potential predictors of HF. Odds ratios for the presence of HF were generated and expressed with 95% CI. cMultivariable analysis with logistic regression was used to identify potential predictor variables of a final diagnosis of HF (variables from univariate analysis with P < 0.05 for entry into model).