Table 1 Demographic and baseline characteristics of neonates with and without AKI.
Demographics and characteristic | Acute kidney injury | ||
|---|---|---|---|
No (n = 295,951) | Yes (n = 8774) | ||
Sex | Male | 159,097 (53.8) | 5257 (59.9) |
Female | 136,620 (46.1) | 3505 (40.0) | |
Race | Asian/Pacific Islander/ American Indian | 13,879 (4.7) | 383 (4.4) |
Black | 52,046 (17.6) | 1870 (21.3) | |
White | 160,661 (54.3) | 4657 (53.1) | |
Other | 37,236 (12.6) | 1176 (13.4) | |
Unknown | 32,129 (10.9) | 688 (7.8) | |
Ethnicity | Hispanic or Latino | 45,503 (15.4) | 1838 (20.9) |
Not Hispanic or Latino | 217,324 (73.4) | 6315 (72.0) | |
Unknown | 33,124 (11.2) | 621 (7.1) | |
Birthweight | <500 g | 1000 (0.3) | 140 (1.6) |
≥500–<1000 g | 13,403 (4.5) | 1894 (21.6) | |
≥1000–<1500 g | 17,893 (6.0) | 566 (6.5) | |
≥1500–<2500 g | 67,768 (22.9) | 1238 (14.1) | |
≥2500 g | 161,976 (54.7) | 3955 (45.1) | |
Missing | 33,911 (11.5) | 981 (11.2) | |
Gestational age | 22–26 weeks’ | 9991 (3.4) | 1682 (19.2) |
27–30 weeks’ | 17,278 (5.8) | 669 (7.6) | |
31–34 weeks | 45,878 (15.5) | 764 (8.7) | |
35–37 weeks’ | 60,955 (20.6) | 1433 (16.3) | |
≥38 weeks’ | 94,963 (32.1) | 2475 (28.2) | |
Missing | 66,886 (22.6) | 1751 (20.0) | |
Discharge year | 2015 | 43,370 (14.7) | 931 (10.6) |
2016 | 47,727 (16.1) | 1227 (14.0) | |
2017 | 51,324 (17.3) | 1398 (15.9) | |
2018 | 45,749 (15.5) | 1293 (14.7) | |
2019 | 44,308 (15.0) | 1483 (16.9) | |
2020 | 35,445 (12.0) | 1378 (15.7) | |
2021 | 28,028 (9.5) | 1064 (12.1) | |
Renal replacement therapy | Yes | 167 (0.1) | 243 (2.8) |
Feudtnera Pediatric Complex Chronic Conditions (CCC) Classifications | Any CCC? | 144,471 (48.8) | 8261 (94.2) |
# of CCC’s | 0.9 ± 1.4 | 2.9 ± 1.9 | |
Cardiovascular | 40,942 (13.8) | 3839 (43.8) | |
Congenital or Genetic | 20,450 (6.9) | 1278 (14.6) | |
Gastrointestinal | 29,877 (10.1) | 2960 (33.7) | |
Hematologic or Immunologic | 7061 (2.4) | 704 (8.0) | |
Malignancy | 10,724 (3.6) | 213 (2.4) | |
Metabolic | 14,858 (5.0) | 1293 (14.7) | |
Neonatal | 70,608 (23.9) | 6187 (70.5) | |
Neurologic or Neuromuscular | 21,110 (7.1) | 1594 (18.2) | |
Renal | 16,362 (5.5) | 2498 (28.5) | |
Respiratory | 16,040 (5.4) | 1383 (15.8) | |
Medical Technology (i.e., device dependency) | 27,051 (9.1) | 3298 (37.6) | |
Transplantation | 5510 (1.9) | 217 (2.5) | |
