Table 4.

Logistic regression for the odds of ROSC in the pre-pandemic (2019) and pandemic (2020) periods, adjusted for suspected confounders.

Predictor	Adjusted Odds Ratio (95% CI) for Obtaining Return of Spontaneous Circulation
Year = 2020	0.61 (0.34–1.11)
Age (per 10 year increase)	0.99 (0.86–1.15)
Gender = Male	0.87 (0.49–1.56)
Arrest Location = Nursing Homea	0.56 (0.19–1.45)
Arrest Location = Public Placea	0.92 (0.34–2.21)
EMS Type = BLS	0.38 (0.21–0.70)⁎
Initial Rhythm = Unshockable	0.32 (0.14–0.72)⁎
Bystander CPR = Yes	1.70 (0.86–3.36)
Race = Whiteb	0.91 (0.31–2.29)
Arrest Witnessed By EMSc	2.41 (1.02–5.77)⁎
Arrest Witnessed By Bystanderc	0.62 (0.31–2.29)

EMS = emergency medical services; PEA = pulseless electrical activity; CPR = cardiopulmonary resuscitation; ROSC = return of spontaneous circulation; CI = confidence interval.

^⁎p < 0.05.

^aCompared to location of Home/Residence.

^bCompared to Non-White Race.

^cCompared to unwitnessed cardiac arrest.