TABLE 1.
Patient Characteristics by Initial Rhythm
| Patient Characteristic | Overall (n = 164) | Bradycardia and Poor Perfusion (n = 96) | Pulseless (n = 68) | p |
|---|---|---|---|---|
| Age, yr, median (IQR) | 0.7 (0.1–3.1) | 0.4 (0.1–1.5) | 1.4 (0.3–7.4) | 0.005a |
| Age, yr, n (%) | < 0.001b | |||
| < 1 | 98 (60) | 68 (71) | 30 (44) | |
| ≥ 1 | 66 (40) | 28 (29) | 38 (60) | |
| Male, n (%) | 90 (55) | 55 (57) | 35 (51) | 0.525b |
| Ethnicity, n (%) | 0.702b | |||
| Hispanic or Latino | 28 (17) | 16 (17) | 12 (18) | |
| Not Hispanic or Latino | 120 (73) | 69 (72) | 51 (75) | |
| Unknown or not reported | 16 (10) | 11 (11) | 5 (7) | |
| Race, n (%) | 0.487b | |||
| White | 82 (50) | 47 (49) | 35 (51) | |
| Black or African American | 37 (23) | 19 (20) | 18 (26) | |
| Other | 8 (5) | 6 (6) | 2 (3) | |
| Unknown or not reported | 37 (23) | 24 (25) | 13 (19) | |
| Preexisting conditions, n (%) | ||||
| Respiratory insufficiency | 132 (80) | 79 (82) | 53 (78) | 0.551b |
| Hypotension | 128 (78) | 72 (75) | 56 (82) | 0.339b |
| Congestive heart failure | 19 (12) | 7 (7) | 12 (18) | 0.050b |
| Pneumonia | 13 (8) | 8 (8) | 5 (7) | 1.000b |
| Sepsis | 44 (27) | 24 (25) | 20 (29) | 0.593b |
| Trauma | 8 (5) | 4 (4) | 4 (6) | 0.719b |
| Renal insufficiency | 24 (15) | 10 (10) | 14 (21) | 0.077b |
| Malignancy | 5 (3) | 1 (1) | 4 (6) | 0.161b |
| Congenital heart disease | 99 (60) | 64 (67) | 35 (51) | 0.054b |
| Illness category, n (%) | 0.186b | |||
| Surgical cardiac | 88 (54) | 58 (60) | 30 (44) | |
| Medical cardiac | 25 (15) | 12 (13) | 13 (19) | |
| Surgical noncardiac | 13 (8) | 7 (7) | 6 (9) | |
| Medical noncardiac | 37 (23) | 18 (19) | 19 (28) | |
| Unknown | 1 (1) | 1 (1) | 0 (0) | |
| Baseline Pediatric Cerebral Performance Category score, n (%) | 0.589c | |||
| Normal (1) | 77 (47) | 47 (49) | 30 (44) | |
| Mild disability (2) | 47 (29) | 27 (28) | 20 (29) | |
| Moderate disability (3) | 23 (14) | 12 (13) | 11 (16) | |
| Severe disability (4) | 13 (8) | 8 (8) | 5 (7) | |
| Coma/vegetative state (5) | 4 (2) | 2 (2) | 2 (3) | |
| Baseline Functional Status Scale score, median (IQR) | 8.0 (6.0–11.0) | 8.0 (6.0–10.5) | 8.0 (6.0–11.5) | 0.933a |
IQR = interquartile range.
a
Wilcoxon rank-sum test.
b
Fisher exact test.
c
Cochran-Armitage trend test.