Fig. 4

The association between early coagulopathy and 28-day mortality in different subgroup of factors including age, sex, preexisting medical condition (prenatal condition, CHD, lung or airway disease, neurologic condition, and gastrointestinal disorder), bystanders witness, and bystander performed CRP. The interaction effects of the factors on the relationship of early coagulopathy and 28-day mortality were respectively explored by the multivariable models. The covariates were selected as a priori including initial cardiac arrest rhythm and duration of chest compression due to the relatively little sample size of the event. CHD congenital heart disease, CPR cardiopulmonary resuscitation, OR odds ratio