| Total (n = 468) | ROSC achieved (n = 128) | Survival to discharge (n = 35) |
---|---|---|---|
Age (years) | |||
 Mean ± SD | 56 ± 17 | 52 ± 18 | 49 ± 16 |
 Median (range) | 60 (18–97) | 53 (18–97) | 48 (18–80) |
Gender, n (%) | |||
 Male | 287 (61) | 71 (55) | 21 (60) |
 Female | 181 (39) | 57 (45) | 14 (40) |
No. of co-morbidities, n (%) | |||
 No | 142 (30) | 34 (27) | 7 (20) |
 One | 144 (31) | 43 (33) | 13 (37) |
 Two | 142 (30) | 44 (34) | 13 (37) |
 Greater than 2 | 40 (9) | 7 (6) | 2 (6) |
CPC score, n(%) | |||
 ≤ 2 | 452 (97) | 124 (98) | 34 (97) |
 > 2 | 15 (3) | 3 (2) | 1 (3) |
Initial cause of arrest, n (%) | |||
 Cardiopulmonary | 302 (65) | 74 (58) | 21 (60) |
 Non-cardiopulmonary | 166 (35) | 54 (42) | 14 (40) |
Location of arrest, n (%) | |||
 In-hospital (ED) | 154 (33) | 62 (48) | 22 (63) |
 Out-of-hospital | 314 (67) | 66 (52) | 13 (37) |
Witnessed arrest, n (%) | 279 (60) | 110 (86) | 31 (89) |
Bystander performed CPR, n (%) | 158 (34) | 67 (52) | 22 (63) |
First documented rhythm, n | |||
 Non-shockable, n (%) | 351 | 68 | 17 |
  Asystole | 185 (40) | 25 (20) | 3 (9) |
  Pulseless electrical activity | 166 (35) | 43 (34) | 14 (40) |
 Shockable, n (%) | 117 | 60 | 18 |
  Ventricular fibrillation | 81 (17) | 43 (34) | 15 (42) |
  Pulseless ventricular tachycardia | 36 (8) | 17 (13) | 3 (9) |
No. of shocks given, n (%) | |||
 0 | 351 (75) | 67 (52) | 17 (49) |
 1–4 | 58 (12) | 38 (30) | 11 (31) |
 > 4 | 59 (13) | 23 (18) | 7 (20) |
Interval between collapse to start CPR (min), n (%) | |||
 Mean ± SD | 30 ± 22 | 15 ± 12 | 13 ± 12 |
 Median (range) | 30 (1–90) | 10 (1–60) | 10 (1–60) |
CPR duration (min), n (%) | |||
 Mean ± SD | 20 ± 9 | 22 ± 9 | 21 ± 9 |
 Median (range) | 20 (5–50) | 20 (5–40) | 20 (10–40) |
Doctors shift, n (%) | |||
 Morning | 179 (38) | 54 (42) | 14 (40) |
 Evening | 105 (22) | 27 (21) | 9 (26) |
 Night | 184 (39) | 47 (37) | 12 (34) |
Team leader, n (%) | |||
 Resident | 311 (66) | 85 (66) | 24 (69) |
 Staff | 157 (34) | 43 (34) | 11 (31) |
Initial serum glucose, n (%) | |||
 Mean ± SD | 185 ± 125 | 170 ± 106 | 151 ± 91 |
 Median (range) | 133 (30–660) | 133 (30–477) | 127 (30–456) |
Epinephrine, n (%) | |||
 Less than 5 ampoules | 315 (67) | 73 (57) | 20 (57) |
 5 or more ampoules | 153 (33) | 55 (43) | 15 (43) |