Background: Age at symptom onset (ASO) is a prognostic factor that could affect the accrual of disability in multiple sclerosis (MS) patients. Some factors are known to influence the risk of multiple
APACHE–Acute Physiological and Chronic Health Evaluation, SOFA–Sequential Organ Failure Assessment, ICU–intensive care unit, CVP–central venous pressure, ScvO–central venous oxygen saturation, OR–odds
▾Bad psychological health refers to score of psychological health lower than 3. ▴Timely anti-viral therapy is defined as initiating anti-viral therapy in 2 days after the onset of influenza A (H1N1).
