Other variables associated with higher mortality in this subset analysis of severely ill patients were; (iii) age > 70 years (OR 2.54, 95% CI 1.2–5.2, p = 0.011); (iv) uncontrolled hematological disease (OR 3.5, 95% CI 1.6–7.5, p = 0.001); (v) platelet count ≤ 20 × 109/L (OR, 5.66, 95% CI 1.44–22, p = 0.013); (vi) platelet count 21–0  × 109/L (OR 3.3, 95% CI 1.2–9.2, p = 0.021); (vii) history of arterial hypertension (OR, 2, 95% CI 1.3–3.2, p = 0.002); and (viii) CRP > 20 mg/dL (OR 2.7, 95% CI 1.1–6.5, p = 0.029). Here, CRP is linked to Hypertension.