Table 1.
Comparing the baseline characteristics of out of hospital cardiac arrest cases based on the return of spontaneous circulation (ROSC) and survival to hospital discharge (SHD)
| Variable |
ROSC
|
SHD
|
||
|---|---|---|---|---|
| No (n=2941) | Yes (n=273) | No (n=3088) | Yes (n=126) | |
| Age (year) | ||||
| Mean ± SD | 58.1 ± 11.7 | 54.9 ± 14.8 | 57.8 ± 13.1 | 54.9 ± 12.0 |
| Gender | ||||
| Female | 1747 (91.9) | 153 (8.1) | 1817 (95.6) | 83 (4.4) |
| Male | 1201 (91.4) | 113 (8.6) | 1266 (96.3) | 48 (3.7) |
| Cardiac history | ||||
| Yes | 1957 (93.7) | 132 (6.3) | 2018 (96.6) | 71 (3.4) |
| No | 991 (81.18) | 134 (11.9) | 1065 (94.7) | 60 (5.3) |
| Witnessed arrest | ||||
| Yes | 746 (88.2) | 100 (11.8) | 512 (95.5) | 24 (4.5) |
| No | 2195 (92.7) | 173 (7.3) | 2300 (97.1) | 68 (2.9) |
| CPR by bystander | ||||
| Yes | 129 (72.1) | 34 (29.0) | 146 (89.6) | 17 (10.4) |
| No | 2819 (92.4) | 232 (7.6) | 2937 (96.3) | 114 (3.5) |
| Shockable r hythm | ||||
| Yes | 651 (85.9) | 107 (14.1) | 707 (93.3) | 51 (6.7) |
| No | 2297 (93.5) | 159 (6.5) | 2276 (96.7) | 80 (3.3) |
| Arrest location | ||||
| Home | 2112 (92.8) | 163 (7.2) | 2194 (96.4) | 81 (3.6) |
| Public | 836 (89.0) | 103 (11.0) | 889 (94.7) | 50 (5.3) |
| Response time (minutes) | ||||
| Mean ± SD | 6.81 ± 3.35 | 4.73 ± 2.65 | 6.74 ± 3.32 | 4.27 ± 3.03 |
| CPR duration (minutes) | ||||
| Mean ± SD | 22.4 ± 12.88 | 16.9 ± 10.40 | 23.1 ± 12.91 | 17.1 ± 8.35 |
| Arrest time | ||||
| Day | 962 (92.3) | 80 (7.7) | 1011 (97) | 31 (3.0 |
| Night | 1986 (91.4) | 186 (8.6) | 2072 (95.4) | 100 (4.6) |
| ETI | ||||
| Yes | 613 (88.6) | 79 (11.4) | 658 (95.1) | 34 (4.9) |
| No | 2235 (92.6) | 187 (7.4) | 2425 (96.2) | 97 (3.8) |
Data are presented as mean ± standard deviation (SD) or number (%). CPR: Cardiopulmonary Resuscitation; ETI: Endotracheal Intubation. CPR duration: was defined as the time from initiation of CPR by emergency medical technicians to prehospital return of spontaneous circulation.