title: LA50 in burn injuries.
abstract: Burn injuries put a huge financial burden on patients and healthcare systems. They are the 8th leading cause of mortality and the 13th most common cause of morbidity in our country. We used data from our Burn Registry Program to evaluate risk factors for mortality and lethal area fifty percent (LA50) in all burn patients admitted over two years. We used multiple logistic regressions to identify risk factors for mortality. LA50 is a reliable aggregate index for hospital care quality and a good measure for comparing results, also with those of other countries. 28,690 burn patients sought medical attention in the Emergency Department, and 1721 of them were admitted. Male to female ratio was 1,75:1. 514 patients were under 15 years old. Median age was 25 (range: 3 months - 93 years). Overall, probability of death was 8.4%. LA50 was 62.31% (CI 95%: 56.57-70.02) for patients aged 15 and over and 72.52% (CI 95%: 61.01-100) for those under 15. In the final model, we found that Adjusted OR was significant for age, female sex, TBSA and inhalation injury (P < 0.05). LA50 values showed that children tolerate more extensive burns. Female sex, burn size, age and inhalation injury were the main risk factors for death. Authorities should pay special attention to these variables, especially in prevention programs, to reduce mortality and improve patient outcome. Children have better outcome than adults given equal burn size. Suicide rates are higher for women than men in our country.
authors.affiliation: Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: K
authors.initials: K
authors.lastname: Seyed-Forootan
authors.affiliation: Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: H
authors.initials: H
authors.lastname: Karimi
authors.affiliation: School of Health, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: S A
authors.initials: SA
authors.lastname: Motevalian
authors.affiliation: Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Momeni
authors.affiliation: School of Health, Kerman University of Medical Sciences, Kerman, Iran.
authors.forename: R
authors.initials: R
authors.lastname: Safari
authors.affiliation: Motahary Burn Hospital, Iran University of Medical Sciences, Tehran, Iran.
authors.forename: M
authors.initials: M
authors.lastname: Ghadarjani
keywords: burns; inhalation injury; lethal area; mortality; risk factors