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Table 2 Patient characteristics (n = 75)

From: Hospital discharge communications during care transitions for patients with acute kidney injury: a cross-sectional study

Patient characteristics Total (n = 75) Stage 1 (N = 25) Stage 2 (N = 25) Stage 3 (N = 25) P value
Age, mean years (SD) 56 (19) 62 (18) 53 (21) 52 (18) 0.16
Female, n (%) 46 (61) 14 (56) 14 (56) 18 (72) 0.41
Race, n (%)      0.35
 White 36 (48) 12 (48) 11 (44) 13 (52)  
 Black 36 (48) 13 (52) 13 (52) 10 (40)  
 Asian 1 (1) 0 (0) 1 (4) 0 (0)  
 Other 2 (3) 0 (0) 0 (0) 2 (8)  
Diabetes, n (%) 16 (21) 5 (20) 6 (24) 5 (20) 0.92
Hypertension, n (%) 33 (44) 14 (56) 11 (44) 8 (32) 0.23
Chronic kidney disease, n (%) 11 (15) 5 (20) 6 (24) 0 (0) 0.04
Coronary artery disease, n (%) 16 (21) 5 (20) 5 (20) 6 (24) 0.92
Congestive heart failure, n (%) 11 (15) 2 (8) 2 (8) 7 (28) 0.07
Charlson comorbidity score, median (IQR) 2 (1–4) 2 (1–5) 2 (2–4) 2 (0–3) 0.25
Length of stay, median days (IQR) 9 (6–16) 6 (4–7) 10 (8–16) 15 (7–35) <0.001
Admission diagnosis categories
 Infectious 16 (21) 3 (12) 5 (20) 8 (32) 0.22
 Circulatory 15 (20) 7 (28) 5 (20) 3 (12) 0.37
 Respiratory 11 (15) 5 (20) 3 (12) 2 (12) 0.65
 Malignancy 10 (13) 4 (16) 4 (16) 2 (8) 0.63
 Digestive 8 (11) 2 (8) 5 (20) 1 (4) 0.16
 Renal 6 (8) 3 (12) 2 (8) 1 (4) 0.58
 Endocrine/metabolic 2 (3) 0 (0) 0 (0) 2 (8) 0.13
 Other 7 (9) 1 (4) 1 (4) 5 (20) 0.08
Discharge Service, n (%)      0.26
 Medical 34 (45) 12 (48) 13 (52) 9 (36)  
 Surgical 26 (35) 10 (40) 5 (20) 11 (44)  
 Oncology 13 (17) 2 (8) 7 (28) 4 (16)  
 Other 2 (3) 1 (4) 0 (0) 1 (4)  
ICU stay during hospitalization, n (%) 23 (31) 6 (24) 5 (20) 12 (48) 0.067
Nadir creatinine, mean (SD) (mg/dl)a 1.01 (0.90) 1.28 (1.25) 1.00 (0.81) 0.76 (0.32) 0.12
Discharge creatinine, mean (SD) (mg/dl) 1.39 (1.09) 1.45 (1.30) 1.30 (1.14) 1.42 (0.82) 0.87
Hospital-acquired AKI, n (%) 46 (61) 14 (56) 14 (56) 18 (72) 0.41
Nephrology Consultb, n (%) 13 (20) 1 (4) 3 (15) 9 (43) 0.004
30 day hospital readmission, n (%) 14 (19) 7 (28) 4 (16) 3 (12) 0.32
  1. aNadir serum creatinine – lowest serum creatinine during hospital admission; Abbreviations: ICU- intensive care unit
  2. bAssessed among 65 patients with consult information available in the electronic medical record