Epidemiological analysis of 9,779 burn patients in China: An eight-year retrospective study at a major burn center in southwest China.

Burns are tissue injuries caused by high temperature, chemicals or electricity. Severe burns may involve all of the organs and tissues of the human body, leading to a series of pathophysiological processes and even death. The present study reviewed the clinical data of burn patients, including cases of burn-associated death, to provide evidence for the strategy of burn prevention. Basic information from 13,205 inpatients treated between January 1, 2009 and December 31, 2016 was extracted from the database of the Institute of Burn Research at Southwest Hospital (Chongqing, China). After excluding 3,426 inpatients who were not primarily treated for burns, 9,779 patients remained; among them, 68 cases (0.7%) had died as a direct consequence of the burns. Based on baseline data, the mortality rate, total body surface area of the burn (TBSA), age, sex, cause of injury and complications were analysed. In general, males accounted for a higher percentage than female burn patients. Of the patients, 95.54% had a TBSA of <50%, and the rate of mortality of the patients was increased when the TBSA was ≥50%. The major causes of injury were scalds (41.60%), fire (26.92%) and electricity (15.29%), and the majority of victims were 14 years or younger. With improvements in burn treatment technology in recent years, burn patient mortality was significantly reduced. Complications, including multiple organ failure and severe systemic infection, may reduce the survival rate of patients. The major risk factors for death included burns resulting from explosions, as well as shock, age (aged 0-1 or ≥50 years), greater TBSA and full-thickness burn area. With increasing length of stay at the hospital, patient mortality decreased. The renewal of treatment concepts and refined patient management contributed to the shorter LOS and lower mortality in 2015 and 2016.