Table 3.
Baseline Demographics of Subjects (n = 478)
| Variable name | Range of values |
|---|---|
| Age | Median = 70; IQR = (57,79) |
| Gender | M = 280 (59%)
F = 198 (41%) |
| Race | Asian = 74 (16%)
Black = 137 (29%) Caucasian = 130 (27%) Hispanic = 79 (17%) Other = 29 (6%) Unknown = 26 (5%) |
| Rhythm | Asystole = 230 (48%)
PEA = 143 (30%) VF = 105 (22%) |
| Beta-blocker Use | Yes = 97 (20%)
No = 262 (55%) Unknown = 119 (25%) |
| Calcium Channel blocker Use | Yes = 45 (9%)
No = 314 (66%) Unknown = 119 (25%) |
| Bystander CPR | Yes = 172 (36%)
No = 265 (55%) Unknown = 41 (9%) |
| Return of Spontaneous Circulation (ROSC) | Yes = 83 (17%)
No = 395 (83%) |
| History of Chronic Obstructive Pulmonary Disease (COPD) | Yes = 80 (17%)
No = 357 (75%) Unknown = 41 (9%) |
| History of Cerebro-vascular Accident | Yes = 52 (11%)
No = 383 (80%) Unknown = 43 (9%) |
| History of Congestive Heart Failure | Yes = 77 (16%)
No = 357 (75%) Unknown = 44 (9%) |
| History of Myocardial Infarction | Yes = 80 (17%)
No = 356 (75%) Unknown = 42 (9%) |
| History of Chronic Renal Failure | Yes = 65 (14%)
No = 370 (77%) Unknown = 43 (9%) |
| History of Cancer | Yes = 57 (12%)
No = 377 (79%) Unknown = 44 (9%) |
| History of Diabetes | Yes = 157 (33%)
No = 277 (58%) Unknown = 44 (9%) |
| History of Hypertension | Yes = 209 (44%)
No = 227 (47%) Unknown = 42 (9%) |
| Downtime | < 10 minutes = 151 (32%)
10 – 15 minutes = 133 (28%) 15 – 30 minutes = 24 (5%) > 30 minutes = 170 (36%) |