Table 1.
Patient characteristics | No CKD (n=4098) | CKD (n=280) | P |
Age, yr, median (interquartile range) | 62 (48–75) | 75 (65–84) | <0.001 |
Male sex, n (%) | 2244 (55) | 176 (63) | 0.009 |
Borough of residence, n (%) | |||
Manhattan | 742 (18) | 100 (36) | <0.001 |
Queens | 2657 (65) | 111 (40) | <0.001 |
Brooklyn | 454 (11) | 41 (15) | 0.06 |
The Bronx | 154 (4) | 19 (7) | 0.01 |
Race and ethnicity, n (%) | |||
White | 1099 (27) | 87 (31) | 0.11 |
Black | 415 (10) | 52 (19) | <0.001 |
Asian | 635 (16) | 42 (15) | 0.83 |
Hispanic | 1292 (32) | 58 (21) | <0.001 |
Comorbidities, n (%) | |||
Hypertension | 1684 (41) | 232 (83) | <0.001 |
Diabetes mellitus | 1052 (26) | 155 (55) | <0.001 |
Congestive heart failure | 339 (8) | 109 (39) | <0.001 |
Asthma | 815 (8) | 38 (14) | 0.003 |
COPD | 233 (3) | 44 (16) | <0.001 |
Baseline laboratory characteristics, median (interquartile range) | |||
Serum creatinine, mg/dl | 0.8 (0.7–1.1) | 1.5 (1.2–2.2) | <0.001 |
BUN, mg/dl | 16 (12.5–21.2) | 31 (20.2–44) | <0.001 |
Hemoglobin, g/dl | 12.1 (10.7–13.5) | 11.6 (9.8–13.1) | <0.001 |
Outcomes, n (%) | |||
Mechanical ventilation | 329 (8) | 37 (13) | 0.002 |
Septic shock | 169 (4) | 27 (10) | <0.001 |
AKI | 892 (22) | 142 (54) | <0.001 |
In-hospital mortality | 815 (20) | 84 (30) | <0.001 |
COPD, chronic obstructive pulmonary disease.