| Total group with AKI | Total AKI group (RIFLE criteria) n= 172 | Total group without AKI | Survivors at 6 months with AKI | Survivors at 6 months without AKI | Differences, total group 172/577 | Differences, survivors 73/325 | ||
---|---|---|---|---|---|---|---|---|---|
 |  | Risk | Injury | Failure |  |  |  |  |  |
Number (percentage) | 172 | 52 (30.2) | 53 (30.8) | 67 (39.0) | 577 | 73 | 325 | P value | P value |
Age, years | 70 (60-77) | 70 (64-78) | 72 (62.5-80.5) | 66 (54-74) | 71 (63-77) | 67 (54.5-74.0) | 69 (61.3-76) | 0.898 | 0.424 |
Males, number (percentage) | 106 (61.6) | 39 (22.7) | 31 (36.0) | 36 20.9) | 350 (60.5) | 44 (60.3) | 190 (58.6) | < 0.001 | < 0.001 |
Females, number (percentage) | 66 (38.4) | 13 (7.6) | 22 (12.8) | 31 (36.0) | 227 (39.5) | 29 (39.7) | 134 (41.4) | < 0.001 | < 0.001 |
APACHE II score, points | 21 (18-26) | 21 (18-26) | 21 (19-24.5) | 22 (18-27) | 17.5 (14-22) | 21 (18-26) | 17 (13-21) | < 0.001 | < 0.001 |
ICU length of stay, days | 13.5 (6-27) | 16 (8.2-25.7) | 11 (6-22) | 12 (6-28) | 7 (5-13) | 10 (6-18) | 7 (5-12) | < 0.001 | 0.002 |
Hospital length of stay, days | 27 (15.2-52) | 22.5 (14.5-55) | 24 (13-54) | 30 (17-63) | 22 (13-37) | 35 (20-61.5) | 26 (16-41.8) | 0.023 | 0.058 |
Ventilation, days | 10 (3.3-20.7) | 15 (5.3-21.5) | 9 (3.5-16.5) | 9 (2-24) | 5 (3-10) | 6 (2-13.5) | 5 (3-8.7) | < 0.001 | 0.002 |
Diagnostic groups, number (percentage) | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Cardiovascular pathology | 73 (42.4) | 20 (20.8) | 24 (12.5) | 29 (15.1) | 111 (19.2) | 33 (45.2) | 64 (19.8) | 0.006 | 0.02 |
   Respiratory pathology | 48 (27.9) | 18 (9.4) | 11 (5.7) | 19 (9.9) | 196 (34.0) | 20 (27.4) | 97 (29.9) | < 0.001 | < 0.001 |
   Gastrointestinal pathology | 45 (26.2) | 12 (6.3) | 16 (8.3) | 17 (8.9) | 214 (37.1) | 19 (26.0) | 139 (42.9) | < 0.001 | < 0.001 |
   Neurological pathology | 2 (1.2) | 1 (0.51) | - | 1 (0.51) | 28 (4.9) | - | 7 (2.2) | - | - |
   Trauma | 1 (0.6) | - | 1 (0.51) | - | 22 (3.8) | - | 14 (4.3) | - | - |
   Others | 3 (1.7) | 1 (0.51) | 1 (0.51) | 1 (0.51) | 6 (1.0) | 1 (1.4) | 3 (0.9) | 0.317 | 0.317 |
Type of admission, number (percentage) | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Non-surgical | 110 (64.0) | 34 (19.8) | 28 (16.3) | 48 (27.9) | 305 (52.9) | 48 (65.8) | 138 (42.6) | < 0.001 | < 0.001 |
   Emergency surgical | 50 (29.1) | 15 (8.7) | 23 (13.4) | 12 (7.0) | 207 (35.9) | 20 (27.4) | 138 (42.6) | < 0.001 | < 0.001 |
   Elective surgical | 12 (7.0) | 3 (1.7) | 2 (1.2) | 7 (4.1) | 65 (11.3) | 5 (6.8) | 48 (14.8) | < 0.001 | < 0.001 |
Type of proxy, number (percentage) | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   Spouse | 97 (56.4) | 26 (15.3) | 35 (20.6) | 36 (21.2) | 412 (71.4) | 51 (69.9) | 257 (79.3) | < 0.001 | < 0.001 |
   Children | 72 (41.9) | 30 (17.6) | 30 (17.6) | 10 (5.9) | 157 (27.2) | 22 (30.1) | 59 (18.2) | < 0.001 | < 0.001 |
   Brother/Sister | 3 (1.7) | 1 (0.6) | 2 (1.2) | - | 8 (1.4) | - | 8 (2.5) | - | - |