. 2009 Feb 14;2(1):7–12. doi: 10.1007/s12245-009-0084-0

Table 1.

Characteristics and resuscitation outcome in patients with OHPCA and drowning victims in cardiac arrest

	Drowning victims (n = 32)	Patients with OHPCA (n = 528)	p value
Age	46.5 ± 21.4	62.5 ± 15.8	0.01^a
Gender (male)/all	22 (69%)	359 (68%)	0. 98^b
Bystander	9 (28%)	343 (65%)	0.03^b
Bystander CPR	11 (34%)	105 (20%)	0.39^b
Initial rhythm ASY+PEA/VF+VT	29/3	297/231	<0.0001^b
Response time (min)
Call to team arrival (min)	11 (4–24)	6 (1–14)	0.001^a
Arrest to team arrival	17 (9–28)	9 (4–17)	0.001^a
Location of arrest at home/public place	3/29	275/253	<0.0001^b
PETCO₂ (mmHg)
Initial	53.2 ± 16.8	15.8 ± 8.3	<0.0001^a
After 1 min of CPR	28.9 ± 6.3	25.9 ± 5.8	0.78^a
Average	43.5 ± 13.8	16.5 ± 8.2	0.002^a
Final	28.6 ± 8.6	26.3 ± 9.4	0.86^a
Alcohol, n (%)	12 (38%)	61 (12%)	0.0002^b
Initial core temperature (°C)	32.8 ± 2.2	35.4 ± 1.9	0.02^a
Suicide	22 (69%)	2 (0.4%)	<0.0001^b
ROSC
ROSC in the field (%)	21 (65%)	301 (57%)	0.33^b
ROSC with admission to the hospital (%)	19 (60%)	253 (48%)	0.27^b
Survived (hospital discharge) (%)	14 (44%)	116 (22%)	0.01^b
Neurological outcome of survivers (CPC), n (%)
CPC 1 + CPC 2	12 (85%)	71 (61%)	0.08^b
CPC 3 + CPC 4	2 (15%)	39 (34%)	0.22^b
CPC 5	–	6 (5%)

ASY asystole, PEA pulseless electrical activity, VF ventricular fibrillation, VT ventricular tachycardia

^aWilcoxon rank sum test

^bFisher test