“…For multivariate analysis, logistic regression and stepwise model were used, with inclusion and permanence of variables with p < 0.05. However, death was the dependent variable adjusted for: (1) presentation to the ES during regular hours or off-hours; (2) age; (3) presence of arterial hypertension; (4) presence of smoking; (5) familial history of dyslipidemia; (6) familial history of diabetes; (7) familial history of CAD; (8) sex; (9) type of ACS (UA, NSTEMI, and STEMI); (10) ejection fraction (EF); and (11) type of treatment (clinical, surgical, or angioplasty). The same model and independent variables were used for a second multivariate analysis, the length of hospital stay being the dependent variable (< 5 or ≥ 5 days).…”