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Table 1 Univariate and multivariable comparisons of the ECPR and CCPR groups

From: Extracorporeal cardiopulmonary resuscitation without target temperature management for out-of-hospital cardiac arrest patients prolongs the therapeutic time window: a retrospective analysis of a nationwide multicentre observational study in Japan

Variables ECPR (n = 307) CCPR (n = 2278) Univariate P value Multivariable P value OR (95% CI)
Age (years) 61 (48–70) 77 (66–85) < 0.001 < 0.001 0.939 (0.929–0.949)
Male (%) 257 (84%) 1457 (64%) < 0.001 0.011 1.683 (1.129–2.508)
BCPR (%) 156 (51%) 991 (44%) 0.017 0.723 1.059 (0.772–1.454)
SR (%) 216 (70%) 463 (20%) < 0.001 < 0.001 9.060 (6.501–12.627)
NLT (min)a 60 (50–71) 36 (21–50) < 0.001 < 0.001 1.056 (1.047–1.065)
CPC 1–2 (%) 22 (7%) 390 (17%) < 0.001 0.004 0.408 (0.223–0.747)
  1. Values are median (interquartile range) or n (%) of cases
  2. ECPR extracorporeal cardiopulmonary resuscitation, CCPR conventional cardiopulmonary resuscitation, OR odds ratio, CI confidence interval, BCPR bystander cardiopulmonary resuscitation, SR shockable rhythm, NLT no and low-flow time, CPC cerebral performance category
  3. aDefined as the interval from witnessed OHCA to start of reperfusion (start of extracorporeal membrane oxygenation for ECPR or return of spontaneous circulation for CCPR)