Table 1.
Characteristics of cardiac arrests in Michigan, 2014–2019.
| No Sustained ROSC (Frequency, %) (N = 19318) | Sustained ROSC (Frequency, %) (N = 5749) | |
|---|---|---|
| Patient Characteristics | ||
| Age (Mean, SD) | 59.73 (20.42) | 60.94 (18.65) |
| Male | 12283 (63.58) | 3524 (61.30) |
| White | 10251 (53.06) | 3802 (66.13) |
| Black/African American | 5265 (27.25) | 820 (14.26) |
| Other Race | 3802 (19.68) | 1127 (19.60) |
| Arrest Characteristics | ||
| Location of Arrest | ||
| Home | 16884 (87.40) | 4593 (79.89) |
| Public | 2434 (12.60) | 1156 (20.11) |
| Initial Rhythm | ||
| Shockable | 3108 (16.09) | 1782 (31.00) |
| Unshockable | 16210 (83.91) | 3967 (69.00) |
| Year | ||
| 2014 | 1704 (8.82) | 452 (7.86) |
| 2015 | 2621 (13.57) | 757 (13.17) |
| 2016 | 3041 (15.74) | 917 (15.95) |
| 2017 | 3722 (19.27) | 1089 (18.94) |
| 2018 | 3956 (20.48) | 1213 (21.10) |
| 2019 | 4274 (22.12) | 1321 (22.98) |
| Exposure Variables | ||
| Who Initiated CPR * | ||
| Fire/Police | 6192 (32.05) | 1785 (31.05) |
| Lay Person | 6091 (31.53) | 2205 (38.35) |
| Lay Medical Provider | 536 (2.77) | 229 (3.98) |
| EMS Personnel | 6499 (33.64) | 1530 (26.61) |
| Who First Applied AED * | ||
| Not Applied | 13312 (68.91) | 3571 (62.12) |
| Non-Police First Responder | 4587 (23.74) | 1536 (26.72) |
| Lay Person | 153 (0.79) | 152 (2.64) |
| Lay Medical Provider | 143 (0.74) | 79 (1.37) |
| Police | 1123 (5.81) | 411 (7.15) |
*
As collected in the registry, police & fire first responders are combined for reporting CPR initiation, while fire & EMS first responders are combined for reporting AED initiation