Admission lactate-to-hemoglobin ratio and mortality in critically ill patients with type 1 acute myocardial infarction: A mimic-iv database study

Figures

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  Figure 1.. Restricted cubic spline analyses of the association between admission lactate-to-hemoglobin ratio and mortality Restricted cubic spline curves depicting the associations between admission lactate-to-hemoglobin ratio (LHBR) and (A) 30-day mortality, (B) 60-day mortality, (C) 90-day mortality, and (D) 180-day mortality. Hazard ratios (solid lines) and corresponding 95% confidence intervals (shaded areas) were estimated from Cox proportional hazards models. The median LHBR value (0.157) was used as the reference point (hazard ratio = 1.0). Histograms represent the distribution of LHBR in the study cohort. Nonlinearity was assessed using Wald tests. Abbreviations: CI, confidence interval; LHBR, lactate-to-hemoglobin ratio.

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  Figure 2.. Restricted cubic spline analyses of the association between natural logarithm-transformed lactate to-hemoglobin ratio and mortality Restricted cubic spline curves depicting the associations between the natural logarithm-transformed lactate to-hemoglobin ratio [ln (LHBR)] and (A) 30-day mortality, (B) 60-day mortality, (C) 90-day mortality, and (D) 180-day mortality. Hazard ratios (solid lines) and corresponding 95% confidence intervals (shaded areas) were estimated from Cox proportional hazards models. The median ln (LHBR) value (−1.848) was used as the reference point (hazard ratio = 1.0). Histograms represent the distribution of ln (LHBR) in the study cohort. Nonlinearity was assessed using Wald tests. Abbreviations: CI, confidence interval; LHBR, lactate-to-hemoglobin ratio; ln, natural logarithm.

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  Figure 3.. Cumulative mortality according to lactate-to-hemoglobin ratio tertiles Cumulative incidence curves for (A) 30-day mortality, (B) 60-day mortality, (C) 90-day mortality, and (D) 180-day mortality according to admission lactate-to-hemoglobin ratio (LHBR) tertiles. Differences between groups were assessed using the log-rank test. Abbreviations: CI, confidence interval; LHBR, lactate-to-hemoglobin ratio.

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  Figure 4.. Receiver operating characteristic analysis of admission lactate-to-hemoglobin ratio, lactate, and hemoglobin for predicting 30-day mortality Receiver operating characteristic (ROC) curve analysis was performed to evaluate the discriminative performance of each biomarker for 30-day mortality. Areas under the ROC curves (AUCs) are presented with 95% confidence intervals (CIs). For hemoglobin, lower values indicate higher 30-day mortality risk. Abbreviations: AUC, area under the receiver operating characteristic curve; CI, confidence interval; LHBR, lactate-to-hemoglobin ratio; ROC, receiver operating characteristic.