CRP and diabetes mellitus: Oxygenation, CRP, and LDH levels, along with a history of diabetes mellitus were deemed significant risk factors for requiring mechanical ventilation; age, male sex, coronary artery disease, diabetes mellitus, chronic statin use, oxygenation, BMI, neutrophil-to-lymphocyte ratio, platelet count, and procalcitonin levels were associated with increased risk of in-hospital mortality.