Table 2 Baseline characteristics of critically ill pH1N1 patients, stratified by AKI
Characteristic | Overall | AKI | No AKI | P value |
|---|---|---|---|---|
(n = 562) | (n = 342) | (n = 220) | ||
Age (yr) | 48.0 (15.0) | 49.1 (15.1) | 46.4 (14.8) | 0.03 |
Female sex | 300 (53.4) | 177 (51.8) | 123 (55.9) | 0.34 |
Ethnicity (n=555, 336, 219) | 0.23 | |||
White/Caucasian | 327 (58.9) | 204 (60.7) | 123 (56.2) | |
Unknown/Mixed/Other | 117 (21.1) | 68 (20.2) | 49 (22.4) | |
Aboriginal | 74 (13.3) | 47 (14.0) | 27 (12.3) | |
Asian | 37 (6.7) | 17 (5.1) | 20 (9.1) | |
Any co-morbidity | 513 (91.3) | 316 (92.4) | 197 (89.6) | 0.24 |
Obesity | 150 (26.7) | 118 (34.5) | 32 (14.6) | <0.0001 |
Diabetes mellitus | 146 (26.0) | 107 (31.3) | 39 (17.7) | 0.0003 |
Chronic obstructive pulmonary disease | 98 (17.4) | 56 (16.4) | 42 (19.1) | 0.41 |
Alcohol abuse | 74 (13.2) | 41 (12.0) | 33 (15.0) | 0.30 |
Chronic kidney disease | 48 (8.5) | 44 (12.9) | 4 (1.8) | <0.0001 |
H1N1 status | ||||
Confirmed | 479 (85.2) | 291 (85.1) | 188 (85.5) | 0.90 |
Probable | 83 (14.8) | 51 (14.9) | 32 (14.6) | |
Days of symptoms pre-hospital (n = 532, 326, 206) | 4.0 (2.0-7.0) | 4.0 (2.0-7.0) | 4.0 (2.0-7.0) | 0.67 |
Days of symptoms pre-ICU (n = 549, 336, 213) | 5.0 (3.0-8.0) | 5.0 (3.0-8.0) | 5.0 (3.0-8.0) | 0.66 |