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Table 1 Baseline Patient Characteristics

From: The number of discharge medications predicts thirty-day hospital readmission: a cohort study

Variable 30-day Readmission P Value
Yes (N = 1147) No ( N = 4360)
Age, yrs 55.2 ± 17.7 56.4 ± 18.1 0.044
Gender: Male 545 (47.5) 2098 (48.1) 0.716
 Female 602 (52.5) 2262 (51.9)  
Race: Caucasian 523 (45.6) 2167 (49.7) 0.034
 African-American 539 (47.0) 1919 (44.0)  
 Other 85 (7.4) 273 (6.3)  
Median Income, dollars 30037 [24830,36763] 29281 [25118,37470] 0.631
Number of Discharge Medications 7 [4,10] 6 [3,9] <0.001
Charlson Comorbidity Score 5 [2,8] 3 [1,6] <0.001
ICU transfer during admission 171 (14.9) 541 (12.4) 0.025
Myocardial Infarction 203 (17.7) 525 (12.0) <0.001
Congestive Heart Failure 386 (33.7) 929 (21.3) <0.001
Peripheral Vascular Disease 207 (18.0) 430 (9.9) <0.001
Cardiovascular Disease 180 (15.7) 508 (11.7) <0.001
Dementia 37 (3.2) 101 (2.3) 0.080
Chronic Obstructive Pulmonary Disease 499 (43.5) 1375 (31.5) <0.001
Connective Tissue Disease 93 (8.1) 222 (5.1) <0.001
Peptic Ulcer Disease 124 (10.8) 283 (6.5) <0.001
Cirrhosis 118 (10.3) 208 (4.8) <0.001
Diabetes Mellitus without complications 260 (22.7) 843 (19.3) 0.012
Diabetes Mellitus with complications 207 (18.0) 433 (9.9) <0.001
Paralysis 76 (6.6) 173 (4.0) <0.001
Renal failure 376 (32.8) 873 (20.0) <0.001
Underlying Malignancy 99 (8.6) 250 (5.7) <0.001
Lymphoma 29 (2.5) 49 (1.1) <0.001
Metastatic Cancer 79 (6.9) 184 (4.2) <0.001
HIV 18 (1.6) 88 (2.0) 0.325
Minimum Hemoglobin, g/dLa 9.5 ± 2.3 10.4 ± 2.4 <0.001
Maximum Creatinine, mg/dLa 1.16 [0.81,2.14] 1.00 [0.77,1.50] <0.001
Length of Stay, days 4.1 [2.2,7.4] 3.0 [1.8,5.6] <0.001
Emergency Department visit in past 6 months 1 [0,3] 0 [0,2] <0.001
Admitted from Emergency Dept 817 (71.2) 3066 (70.3) 0.548
Insurance: Private 38 (3.3) 251 (5.8) <0.001
 Medicare 184 (16.0) 961 (22.0)  
 Medicaid 554 (48.3) 1885 (43.2)  
 Patient Pay 49 (4.3) 390 (8.9)  
  1. Values expressed as mean ± standard deviation or median [25th percentile, 75th percentile]
  2. Abbreviations: ICU intensive care unit; HIV human immunodeficiency virus
  3. aDuring the hospitalization