IJCS | Volume 33, Nº4, July and August 2020

385 Table 2 - Multivariate analysis of factors related to in-hospital mortality among patients with acute myocardial infarction by logistic regression Factors OR CI (95%) p-value Adjusted OR CI (95%) p-value Age < 65 years 1.0 - - 1.0 - - ≥ 65 years 3.58 1.89 - 6.77 < 0.001 2.94 1.25 - 6.96 0.014 Erythrocytes a 0.18 0.11 - 0.32 < 0.001 0.36 0.17 - 0.76 0.006 Leukocytes b ≤ 10.5 1.0 - 1.0 - - > 10.5 5.52 2.71 - 11.3 < 0.001 3.83 1.48 - 9.91 0.006 Platelet b ≤ 231 1.0 - 1.0 - - > 231 9.44 2.94 - 30.3 < 0.001 9.02 1.71 - 47.4 0.009 NLR < 3.7 1.0 - - 1.0 - - ≥ 3.7 16.0 5.67 - 45.0 < 0.001 4.28 1.30 - 14.1 0.017 NRBC Absence (0) 1.0 - 1.0 - - Presence(> 1) 33.9 15.8 - 72.8 <0.001 10.1 4.06 - 24.9 < 0.001 MPV < 10.4 1.0 - 1.0 - - ≥ 10.4 3.32 1.46 - 7.55 0.004 2.99 1.05 - 8.55 0.041 a Decreased risk with the increase of one unit of the laboratory marker; b Risk for values above the median; OR: Odds Ratio; CI: confidence interval; NLR: neutrophil to lymphocyte ratio; NRBC: nucleated red blood cell; MPV: mean platelet volume. Table 3 - In-hospital mortality score among patients with acute myocardial infarction by logistic regression Factors Adjusted OR CI (95%) p-value Coefficient β of logistic regression Score* ( β x 10) NLR < 3.7 1.0 - - 0 ≥ 3.7 4.28 1.30 - 14.1 0.017 1.455 15 NRBC Absence (0) 1.0 - - 0 Presence (> 1) 10.1 4.06 - 24.9 < 0.001 2.308 23 MPV < 10,4 1.0 - - - 0 ≥ 10.4 2.99 1.05 - 8.55 0.041 1.095 11 * Variation of points from 0 to 49 points; * The higher the score, the higher the risk of intrahospital death; OR: Odds Ratio; CI: confidence interval; NLR: neutrophil to lymphocyte ratio; NRBC: nucleated red blood cell; MPV: mean platelet volume. Monteiro Júnior et al. Hematological scoring system in AMI Int J Cardiovasc Sci. 2020; 33(4):380-388 Original Article