Table 2.
Patient Characteristics.a
| Non-AKI Group, n = 283 | AKI Group, n = 54 | P | |
|---|---|---|---|
| Male, n (%) | 158 (55.8) | 41 (75.9) | .006 |
| African American race, n (%) | 145 (51.2) | 38 (70.4) | .01 |
| Age, yearsb | 58.8 ± 16.0 | 55.5 ± 14.4 | .13 |
| Height, cmb | 172 ± 9.9 | 175.5 ± 11 | .03 |
| Weight, kg | 79.8 (66.1-95.3) | 86.1 (70-107) | .01 |
| Admission Glasgow coma scale score | 9 (6-13) | 8 (6-11) | .18 |
| Mechanical ventilation, n (%) | 153 (54.1) | 42 (77.8) | .001 |
| Neurologic injury, n (%) | |||
| Acute ischemic stroke | 94 (33.2) | 19 (35.2) | .78 |
| Intracerebral hemorrhage | 97 (34.3) | 19 (35.2) | .90 |
| Traumatic brain injury | 30 (10.6) | 7 (13.0) | .61 |
| Other | 62 (21.9) | 9 (16.7) | .39 |
| Past medical history, n (%) | |||
| Chronic kidney disease | 3 (1.1) | 4 (7.4) | .003 |
| Chronic heart failure | 23 (8.1) | 8 (14.8) | .12 |
| Serum sodium, mg/dL | |||
| Baseline | 139 (135-142) | 140 (136-142) | .16 |
| Peak | 148 (142-154) | 155 (149-158) | <.001 |
| Serum osmolality, mOsm/L | |||
| Baseline | 289 (277-297) | 292 (282-302) | .12 |
| Peak | 304 (291-317) | 322 (308-328) | <.001 |
| Electrolyte abnormalities | |||
| Chloride > 110 mmol/L | 151 (55.1) | 43 (79.6) | <.001 |
| Sodium > 155 mmol/L | 52 (19) | 25 (46.3) | <.001 |
| Osmolality > 320 mOsm/L | 51 (18.9) | 28 (51.9) | <.001 |
Abbreviation: AKI, acute kidney injury.
aAll data are presented as median (25%-75% interquartile range) unless otherwise noted.
bData are presented as mean ± standard deviation.