Table 1.
Patient Characteristics
| Baseline Characteristic | All Patients With BNP Measured (N=55 759) | Admission BNP (N=53 585) | Discharge BNP (N=24 326) | Admission and Discharge BNP; LOS>2 days (N=7187) | Natriuretic Peptide Not Measured (N=54 116) |
|---|---|---|---|---|---|
| Age, y (mean±SD) | 71±12 | 71±12 | 71±12 | 71±12 | 69±12 |
| Male, N (%) | 54 789 (98) | 52 659 (98) | 23 928 (98) | 7075 (98) | 53 074 (98) |
| Black, N (%) | 12 591 (24) | 12 370 (25) | 5621 (25) | 1577 (23) | 14 453 (30) |
| Coronary artery disease, N (%) | 44 666 (83) | 42 858 (83) | 19 571 (83) | 5790 (83) | 40 897 (83) |
| Hypertension, N (%) | 51 262 (95) | 49 217 (95) | 22 367 (95) | 6591 (95) | 46 676 (94) |
| Diabetes, N (%) | 36 981 (68) | 35 355 (68) | 15 748 (67) | 4830 (70) | 32 991 (67) |
| Cerebrovascular disease, N (%) | 25 954 (48) | 24 802 (48) | 10 821 (46) | 3420 (49) | 22 376 (45) |
| Chronic obstructive pulmonary disease, N (%) | 38 966 (72) | 37 223 (72) | 16 609 (71) | 5133 (74) | 34 614 (70) |
| Sodium, mmol/L (mean±SD) | 138±4.1 | 138±4.1 | 138±4.0 | 138±4.3 | 138±4.0 |
| Creatinine, μmol/L (mg/dL) (mean±SD) | 155.6±114.9 (1.76±1.3) | 155.6±114.9 (1.76±1.3) | 152.1±114.9 (1.72 ± 1.3) | 156.5±97.2 (1.77±1.1) | 160.0±141.4 (1.81 ± 1.6) |
| Hemoglobin, g/L (g/dL) (mean±SD) | 119±20 (11.9±2.0) | 119±20 (11.9±2.0) | 120±20 (12.0±2.0) | 119±20 (11.9±2.0) | 120±21 (12.0±2.1) |
BNP indicates B‐type natriuretic peptide. Denominator for race is the following: any BNP 52 452, admission 50 342, discharge 22 933, both 6787, and no BNP 48 074. Denominator for comorbidities is the following: any BNP 53 955, admission 51 806, discharge 23 524, both 6944, and no BNP 49 482. Sample size for lab data for any BNP 54 073, admission 51 988, discharge 24 966, both 7376, and no BNP 40 396. LOS indicates lenght of stay.