Table 1.
Patient characteristics for the full cohort and positively labeled cohorts for each end point
| All | AKI | CRRT Dialysis | Vasoactive Medications | |
|---|---|---|---|---|
| Organ system | — | Renal | Renal | Cardiovascular |
| Prediction horizon, h | — | 48 | 12 | 12 |
| Patients | 36 498 (100) | 17 381 (47.6) | 1165 (3.2) | 14 539 (39.8) |
| ICU admissions | 52 038 (100) | 14 918 (28.7) | 1308 (2.5) | 16 601 (31.9) |
| Time steps | 5 116 931 (100) | 71 306 (1.4) | 13 6423 (2.7) | 662 786 (13.0) |
| Age, y | 64 (52-76) | 69 (57-78) | 63 (51-73) | 67 (57-77) |
| Female | 15 414 (42.2) | 7344 (42.3) | 433 (37.2) | 5696 (39.2) |
| ICU LoS, d | 2.08 (1.17-4.08) | 2.58 (1.33-5.17) | 3.79 (1.75-9.67) | 2.88 (1.46-5.92) |
| In-ICU mortality | 4096 (7.9) | 3092 (10.4) | 560 (18.7) | 3000 (12.4) |
| Fraction of admission with positive label, % | — | 3.2 (1.6-5.7) | 28.1 (8.3-50.6) | 20.5 (8.4-45.5) |
| Contiguous label duration, d | — | 0.75 (0.33-1.46) | 1.92 (0.21-4.63) | 0.63 (0.21-1.63) |
| Time to first label, d | — | 0.54 (0.13-1.50) | 2.02 (0.83-4.46) | 0.13 (0.04-0.33) |
|
| ||||
| First MV | Mortality | Remaining LoS ≤ 2d | — | |
|
| ||||
| Organ system | Respiratory | — | — | — |
| Prediction horizon | 12 hours | 48 hours | 48 hours | — |
| Patients | 13933 (38.2) | 5129 (14.1) | — | — |
| ICU admissions | 18716 (36.0) | 4096 (7.9) | — | — |
| Time steps | 2793417 (54.6) | — | — | — |
| Age, y | 63 (49-76) | 71 (58-80) | — | — |
| Female | 6100 (43.8) | 2293 (44.7) | — | — |
| ICU LoS, d | 2.92 (1.54-6.29) | 2.88 (1.33-6.58) | — | — |
| In-ICU mortality | 3181 (14.3) | — | — | — |
| Fraction of admission labeled, % | 100 (97.2-100) | 3.4 (1.2-11.5) | 96.1 (49.5-100) | — |
| Time to first label, d | 0.00 (0.00-0.08) | 3.17 (1.08-8.04) | — | — |
Values are n (%) or median (interquartile range), unless otherwise indicated.
AKI: acute kidney injury; CRRT: continuous renal replacement therapy; ICU: intensive care unit; LoS: length of stay; MV: mechanical ventilation.