Table 1 Baseline demographic and clinical characteristics of elderly patients who presented with or without acute kidney injury (AKI)
Characteristics | Total | AKI (−) | AKI (+) | p value |
|---|---|---|---|---|
…………….. Mean ± SD or n (%)a……………. | ||||
Demographics | ||||
Age, years | 80.4 ± 8.2 | 81.0 ± 8.2 | 79.5 ± 8.3 | 0.26 |
Gender, male | 77 (51) | 42 (46) | 35 (59) | 0.1 |
Body mass index, kg/m2 | 22.2 ± 5.2 | 21.8 ± 6.1 | 22.7 ± 3.3 | 0.43 |
Comorbidities | ||||
Diabetes mellitus | 59 (39) | 31 (33) | 28 (47) | 0.08 |
Hypertension | 84 (55) | 55 (59) | 29 (49) | 0.23 |
Cirrhosis | 8 (5) | 2 (2) | 6 (10) | 0.03 |
Obstructive pulmonary diseases | 17 (11) | 9 (10) | 8 (14) | 0.46 |
Coronary artery disease | 12 (8) | 8 (9) | 4 (7) | 0.69 |
Past myocardial infarction | 1 (1) | 0 (0) | 1 (2) | 0.21 |
Heart failure | 27 (18) | 15 (16) | 12 (20) | 0.51 |
Peripheral artery disease | 11 (7) | 8 (9) | 3 (5) | 0.42 |
Chronic kidney disease | 34 (22) | 18 (19) | 16 (27) | 0.22 |
Autoimmune disorder | 4 (3) | 1 (1) | 3 (5) | 0.13 |
Any cancer | 40 (26) | 21 (23) | 19 (32) | 0.19 |
Gastrintestinal ulcer disease | 17 (11) | 9 (10) | 8 (14) | 0.46 |
Presence of hemiplegia | 5 (3) | 4 (4) | 1 (2) | 0.38 |
Dementia and/or Parkinsonism | 21 (14) | 14 (15) | 7 (12) | 0.58 |
Charlson Comorbidity Index | 7.7 ± 2.4 | 7.4 ± 2.3 | 8.2 ± 2.4 | 0.05 |
Main admission category | 0.58 | |||
Cardio-vascular | 7 (5) | 4 (4) | 3 (5) | |
Pulmonary | 69 (45) | 46 (49) | 23 (39) | |
Hepatobiliary | 10 (7) | 5 (5) | 5 (8) | |
Gastrointestinal | 15 (10) | 6 (6) | 9 (15) | |
Renal | 15 (10) | 4 (4) | 11 (19) | |
Sepsis of unknown origin | 13 (9) | 11 (12) | 2 (3) | |
Oncology | 10 (7) | 6 (6) | 4 (7) | |
Miscellaneous | 13 (9) | 11 (12) | 2 (3) | |
Physical examination parameters | ||||
Systolic BP, mmHg | 134 ± 37.6 | 143 ± 37.5 | 120 ± 33.5 | <0.01 |
Diastolic BP, mmHg | 74.6 ± 20.1 | 79.2 ± 21 | 67.3 ± 16.2 | <0.01 |
Heart rate, beats/min | 95.9 ± 21 | 96.9 ± 19.4 | 94.4 ± 23.5 | 0.48 |
Respiratory rate, breaths/min | 20 ± 3.1 | 20.1 ± 3.1 | 19.9 ± 3.2 | 0.7 |
GCS score | 12.5 ± 3.1 | 12.5 ± 3.2 | 12.6 ± 2.8 | 0.98 |
Hemogram at admission | ||||
White blood cell, K/μL | 12.2 ± 6.2 | 11.6 ± 5.1 | 13.1 ± 7.6 | 0.15 |
Hemoglobin, g/dL | 11.7 ± 8.5 | 12.7 ± 10.5 | 10.1 ± 2.8 | 0.07 |
Baseline sCR, mg/dL | 1.5 ± 1.7 | 1.5 ± 2.0 | 1.4 ± 1.0 | 0.51 |
Baseline eGFR b , mL/min/1.73 m 2 | 63.7 ± 30.2 | 67.1 ± 31.4 | 58.3 ± 27.6 | 0.08 |