|
Characteristics
|
Overall population
|
Group 1 (< 45 yr)
|
Group 2 (45 to 54 yr)
|
Group 3 (55 to 64 yr)
|
Group 4 (65 to 74 yr)
|
Group 5 (≥75 yr)
|
|---|
| |
(N = 111)
|
(n = 22)
|
(n = 27)
|
(n = 22)
|
(n = 23)
|
(n = 17)
|
|---|
|
Age, yr*
|
58 [47 to 70]
|
40 [36 to 43]
|
50 [47 to 52]
|
59 [58 to 61]
|
70 [67 to 72]
|
78 [76 to 83]
|
|
Males, n (%)
|
87 (78)
|
20 (91)
|
22 (81)
|
19 (86)
|
16 (70)
|
10 (59)
|
|
Medical history, n (%)
| | | | | | |
|
Hypertension*
|
46 (41)
|
3 (14)
|
10 (37)
|
8 (36)
|
15 (65)
|
9 (53)
|
|
CHD*
|
27 (24)
|
2 (9)
|
4 (15)
|
3 (14)
|
10 (44)
|
8 (47)
|
|
NYHA classification III or IV*
|
29 (26)
|
1 (5)
|
5 (19)
|
5 (23)
|
12 (52)
|
6 (35)
|
|
Location of cardiac arrest*
| | | | | | |
|
Home, n (%)
|
43 (39)
|
8 (36)
|
8 (30)
|
5 (24)
|
11 (48)
|
11 (65)
|
|
Workplace, n (%)
|
18 (16)
|
4 (18)
|
12 (44)
|
2 (10)
|
0
|
0
|
|
Public place, n (%)
|
50 (45)
|
10 (45)
|
7 (26)
|
15 (67)
|
12 (52)
|
6 (35)
|
|
No-flow duration, minutes
|
5 [1 to 10]
|
4 [1 to 8]
|
5 [1 to 10]
|
5 [1 to 10]
|
5 [1 to 10]
|
6 [1 to 10]
|
|
Time to ROSC, minutes
|
30 [16 to 45]
|
27 [14 to 44]
|
33 [19 to 48]
|
21 [19 to 50]
|
32 [16 to 45]
|
31 [19 to 41]
|
|
Epinephrine dose, mg
|
2 [0 to 8]
|
1.5 [0 to 7.5]
|
5 [0 to 10.5]
|
2 [0 to 5]
|
2 [0 to 4.5]
|
3 [0 to 6.25]
|
|
ECG, n (%)
| | | | | | |
|
ST elevation
|
50 (45)
|
9 (41)
|
16 (59)
|
11 (50)
|
6 (26)
|
8 (47)
|
|
LBBB
|
10 (9)
|
0
|
2 (7)
|
3 (14)
|
4 (17)
|
1 (7)
|
- aCHD: coronary heart disease; NYHA: New York Heart Association; ROSC: return of spontaneous circulation; epinephrine dose: cumulative dose of epinephrine required during initial resuscitation; ECG: electrocardiogram; LBBB: left bundle branch block. *P < 0.05 between-group comparisons. Numbers between brackets are percentages or 25th to 75th percentiles.
