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28-day mortality by MAP and mean vasopressor load quartiles as predicted by the adjusted logistic regression model. Mean arterial blood pressure (MAP) quartile I = 70 to 74.3 mmHg; MAP quartile II = 74.3 to 77.8 mmHg; MAP quartile III = 77.8 to 82.1 mmHg; MAP quartile IV = 82.1 to 99.7 mmHg.
