Table 2 Baseline Characteristics of All Patients from 2006 and 2013
Variable | 2006 (N = 397) | 2013 (N = 372) | P Value |
|---|---|---|---|
Age | 61 ± 17 | 63 ± 15 | 0.153 |
Male Sex n (%) | 228 (57) | 211 (57) | 0.884 |
Location | <0.001 | ||
Cardiology | 126 (32) | 122 (33) | |
Coronary Care Unit | 38 (10) | 35 (9) | |
Medical/Surgical Ward | 29 (7) | 62 (17) | |
General Surgery | 136 (34) | 75 (20) | |
Internal Medicine | 68 (17) | 78 (21) | |
Medical Co-morbidities | |||
Diabetes Mellitus | 112 (28) | 114 (31) | 0.477 |
Hypertension | 221 (56) | 214 (58) | 0.611 |
Atrial Fibrillation | 41 (10) | 69 (19) | 0.001 |
Congestive Heart Failure | 63 (16) | 53 (14) | 0.547 |
Ischemic Heart Disease | 134 (34) | 102 (27) | 0.061 |
Chronic Obstructive Lung Disease | 55 (14) | 61 (16) | 0.364 |
Malignancy | 69 (17) | 69 (19) | 0.707 |
Liver Disease | 19 (5) | 24 (6) | 0.348 |
Chronic Kidney Disease | 100 (25) | 92 (25) | 0.934 |
(GFR < 60 ml/min/1.73 m2) | |||
Alcohol Abuse | 8 (2) | 14 (4) | 0.194 |
Gastrointestinal Symptoms | 83 (21) | 102 (27) | 0.043 |
Surgery | 96 (24) | 87 (23) | 0.865 |
Medications | |||
Calcineurin Inhibitor | 9 (2) | 13 (3) | 0.388 |
Diuretics | 125 (31) | 121 (33) | 0.758 |
Proton Pump Inhibitors | 100 (25) | 130 (35) | 0.004 |
Oral Magnesium | 9 (2) | 11 (3) | 0.652 |
Laboratory mean (SD) | |||
Calcium (Total) (n = 171/210) | 2.17 (2.04-2.30) | 2.10 (2.01-2.12) | 0.002 |
Potassium (n = 396/369) | 4.1 (3.8-4.5) | 4.2 (3.8-4.5) | 0.968 |
Hemoglobin (n = 396/371) | 127 (111–143) | 127 (108–140) | 0.163 |
Albumin (n = 149/158) | 30 (26–34) | 30 (24–34) | 0.649 |
MDRD GFR (396/266) | 63 (42–81) | 69 (45–88) | 0.023 |
Magnesium (N = 173/233) | 0.84 (0.75-0.92) | 0.78 (0.71-0.86) | <0.001 |
Admission Magnesium Low (n = 173/233) | 39 (23) | 76 (33) | 0.030 |