Table 3. Clinical outcomes.

* Fisher’s exact test, two-tailed, p<0.05.

PoCUS: point-of-care ultrasound; N: number; CI: confidence interval; ROSC: return of spontaneous circulation; SHA: survival to hospital admission; SHD: survival to hospital discharge

Outcome		No PoCUS	Positive Cardiac Activity on PoCUS	Negative Cardiac Activity on PoCUS	P-value
ROSC	n/N (%; 95% CI)	17/43 (39.5; 24.9-54.1%)	16/21 (76.19; 57.97-94.4%)	31/159 (19.5; 13.4-25.6%)	<0.001*
SHA	n/N (%; 95% CI)	12/43 (27.9; 14.5-41.3)	7/21 (33.3; 13.2-53.5%)	11/159 (6.9; 2.97-10.86%)	<0.001*
SHD	n/N (%; 95% CI)	3/43 (6.9; -0.6-14.59%)	2/21 (9.5; -3-22.07%)	1/159 (0.6; -0.5-1.8%)	0.008*