Association between Shock Index and Emergency Department Cardiac Arrest

Table 2

The association between in-hospital 30-day mortality and shock index ≥0.9 and blood pressure <90 mmHg in different etiologies of cardiac arrest.

	Shock index ≥0.9		Systolic blood pressure <90 mmHg
Etiology	aOR	95% CI of OR	aOR	95% CI of OR
All	1.6	1.5–1.8	1.7	1.6–1.9
Hypoxia	1.3	1.1–1.6	1.2	1.0–1.6
Cardiac cause	1.8	1.6–2.1	1.8	1.6–2.1
Bleeding	1.3	1.0–1.7	1.4	1.0–1.9
Sepsis	1.3	1.03–1.6	1.2	1.0–1.5
Other metabolic problem	1.8	1.5–2.1	1.9	1.7–2.2

OR, odds ratio; CI, confidence interval; aOR, adjust for age and sex by COX regression. Statistic significance.