IL6 and Thrombocytopenia: High plasma IL-6 was also found to be an independent risk factor for thrombocytopenia and hospitalization exceeding seven days (OR 3.6, 95% CI 1.6-8.0, P = 0.002, and OR 4.5, 95% CI 1.9-10.8, P < 0.001, respectively) in models including high plasma IL-6, high plasma CRP, and age.