Table 2 Hospital Complications by AKI Stages for Patients Admitted with SARS-CoV2 Infection
From: SARS-CoV-2 infection increases risk of acute kidney injury in a bimodal age distribution
|  | Total | No AKI | AKI-1 | AKI − 2 | AKI-3 (no RRT) | AKI-RRT |
|---|---|---|---|---|---|---|
6874 | 4138 (60.2) | 1733 (25.2) | 382 (5.6) | 517 (7.5) | 104 (1.5) | |
Age Categories | ||||||
  < 20 years | 621 (9) | 450 (11) | 103 (6) | 23 (6) | 44 (9) | 1 (1) |
 20 to < 40 years | 772 (11) | 614 (15) | 116 (7) | 10 (3) | 25 (5) | 7 (7) |
 40 to < 60 years | 2038 (30) | 1351 (33) | 467 (27) | 73 (19) | 110 (21) | 37 (36) |
 60 to < 80 years | 2647 (39) | 1369 (33) | 773 (45) | 191 (50) | 259 (50) | 55 (53) |
  ≥ 80 years | 796 (12) | 354 (9) | 274 (16) | 85 (22) | 79 (15) | 4 (4) |
Admitted to ICU | ||||||
 Yes | 4075 (59) | 2136 (52) | 1116 (64) | 282 (74) | 437 (85) | 104 (100) |
 Noa | 2799 (41) | 2002 (48) | 617 (36) | 100 (26) | 80 (16) | 0 (0) |
Hospitalization length of stay (days), median (IQR)b | 7 (4, 13) | 6 (4, 11) | 9 (5, 17) | 11 (6, 22) | 13 (7, 23) | 31 (22, 48) |
ICU length of stay (days), median (IQR)b | 5 (2, 11) | 4 (2, 9) | 6 (2, 13) | 8 (2, 18) | 6.5 (2.5, 16) | 22 (11, 38) |
Intubation | 1899 (28) | 720 (17.4) | 596 (34) | 185 (48) | 298 (58) | 100 (96) |
Discharged on Oxygen | 594 (9) | 334 (8) | 186 (11) | 28 (7) | 35 (7) | 10 (10) |
Vasopressors/ Inotropes | 1203 (18) | 380 (9) | 374 (22) | 134 (35) | 222 (43) | 93 (89) |
ECMO | 78 (1) | 24 (0.6) | 32 (2) | 10 (3) | 10 (2) | 2 (2) |
Thrombosesc | 337 (5) | 140 (3) | 112 (7) | 22 (6) | 40 (8) | 23 (22) |
Mortality | 1314 (19.1) | 434 (10.5) | 399 (23.0) | 157 (41.1) | 255 (49.3) | 69 (66.4) |
RD of Mortality (95% CI) |  | Reference | 12.5% (10.3–14.7) | 30.6% (25.6–35.6) | 38.8% (34.4–43.2) | 55.9% (46.7–65.0) |
OR of Mortality (95% CI) |  | Reference | 2.6 (2.2–3.0) | 6.0 (4.7–7.5) | 8.3 (6.8–10.1) | 16.8 (11.1–25.6) |