Factors affecting long-term survival:
(1) age of the patient
(2) number and severity of comorbid conditions
(3) acute physiology score (APS) on ICU admission (from the APACHE II score)
(4) newly diagnosed cancer
(5) reason for ICU admission
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Factor
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Impaired Long Term Survival (Hazard Ratio >= 2)
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age
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age >= 45 years, with effect increasing with the patient's age (maximum effect with age >= 75 years)
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number and severity of comorbid conditions
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Charlson Comorbidity Index >= 3
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APS score
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>= 15
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newly diagnosed cancer
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|
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reason for admission
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surgery, cardiac arrest
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Other factors impacting survival (hazard ratio 1.50 - 1.99):
(1) maximum number of organ failures >= 3
(2) length of stay in the ICU >= 5 days
(3) other reasons for admission: sepsis, drug overdose or poisoning, non-traumatic brain disorder, medical disorder
(4) APS score 10 to 14
(5) Charlson Comorbidity Index 1 or 2
Someone who has been admitted for the ICU with a serious illness has an impaired long-term survival compared to someone of similar age, race and sex who has not been.
