Clinical and biochemical predictors of acute heart failure, expressed with their respective odds ratios, 95% CI, β-coefficient, and the integer score derived from each predictor
| Predictors | ||
|---|---|---|
| Elevated NT-proBNP* | ||
|
Odds ratio: 44 95% CI: 21.0-91.0 β Coefficient: 3.8 Integeric score: 4 |
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| Interstitial edema on chest x-ray | ||
|
Odds ratio: 11 95% CI: 4.5-26.0 β Coefficient: 2.4 Integeric score: 2 |
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| Orthopnea | ||
|
Odds ratio: 9.6 95% CI: 4.0-23.0 β Coefficient: 2.26 Integeric score: 2 |
||
| Lack of fever | ||
|
Odds ratio: 6.0 95% CI: 2.0-18.0 β Coefficient: 1.80 Integeric score: 2 |
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| Current loop diuretic use | ||
|
Odds ratio: 3.4 95% CI: 1.8-6.4 β Coefficient: 1.23 Integeric score: 1 |
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| Age>75 y | ||
|
Odds ratio: 2.7 95% CI: 1.4-5.2 β Coefficient: 1.0 Integeric score: 1 |
||
| Rales on lung exam | ||
|
Odds ratio: 2.4 95% CI: 1.2-4.7 β Coefficient: 0.86 Integeric score: 1 |
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| Lack of cough | ||
|
Odds ratio: 2.3 95% CI: 1.2-4.3 β Coefficient: 0.81 Integeric score: 1 |
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A final possible score of 0 to 14 points is possible. Integeric Score: 0 to 5 low likelihood of heart failure; 6 to 8 intermediate likelihood of heart failure; 9 to 14 high likelihood of heart failure
*Elevated NT-proBNP was defined as >450 pg/mL if age <50 years and >900 pg/mL if age >50 years.