TRISS Probability of Survival

Prospective studies indicate that one would be able to calculate the probability of survival if the following variables are available: ISS, RTS, age and the mechanism of injury. The probability of survival (Ps) is expressed by the following formula:

Ps = 1/(1 + e-b), where b = b0 + bl(RTS) + b2(ISS) + b3(AgeIndex).

The coefficients b0-b3 are derived from multiple regression analysis of the Major Trauma Outcome Study (MTOS) databases. AgeIndex is 0 if the patient is under 54 years of age or 1 if 55 years and over. Coefficients b0 and b3 are different for blunt and penetrating trauma. If the patient is under 15 years, the blunt coefficients are used, regardless of mechanism [12].

Cure Your Yeast Infection For Good

Cure Your Yeast Infection For Good

The term vaginitis is one that is applied to any inflammation or infection of the vagina, and there are many different conditions that are categorized together under this ‘broad’ heading, including bacterial vaginosis, trichomoniasis and non-infectious vaginitis.

Get My Free Ebook

Post a comment