Annual Probability of Developing Sepsis

Sepsis affects approximately 1.7 million Americans each year, resulting in about 270,000 deaths. It is the most common cause of death in US hospitals and the most expensive condition treated in hospitals, costing over $62 billion per year. The mortality rate for sepsis ranges from about 15-30%, depending on severity.

Sepsis occurs when the body's response to an infection injures its own tissues and organs. Any infection can lead to sepsis, but the most common sources are pneumonia, urinary tract infections, abdominal infections, and skin infections. Risk factors include age over 65 (who account for most sepsis cases), immunosuppression, chronic diseases (diabetes, kidney disease, liver disease), recent surgery or hospitalization, and indwelling medical devices.

Early recognition and treatment are critical: for every hour that treatment is delayed, the mortality rate increases by about 4-8%. The "Surviving Sepsis Campaign" guidelines emphasize rapid administration of antibiotics and intravenous fluids. Sepsis survivors often face long-term consequences including cognitive impairment, physical disability, PTSD, and a higher risk of re-hospitalization. About 40% of sepsis survivors are re-hospitalized within 90 days.