Characteristics and aetiology of low‐temperature burns in Beijing of China

This study was designed to analyse the characteristics and aetiology of low‐temperature burns and explore the prevention and treatment strategies. In total, 206 patients hospitalised with low‐temperature burns in a major burn center in Beijing from 2017 to 2021 were included. There were 35–49 cases per year, with an average of 41 ± 4.5 cases. The prevalence of low‐temperature burns was higher in female than in male and are mainly resulted from two kinds of incidents: unintended burns from heat treatment (50.97%, 105/206) and improper use of heating devices to keep warm (43.69%, 90/206). Most cases occurred in autumn (33.01%, 68/206) and the least in spring (17.96%, 37/206); cases in summer (24.27%, 50/206) and winter (24.76%, 51/206) accounted for nearly a quadrant respectively. Low‐temperature burns in summer were mainly unintended burns from heat treatment (80%, 40/50), whereas in autumn were mainly resulted from improper use of heating devices to keep warm (55.88%, 38/68), the difference was statistically significant (χ (2) = 42.801, P < .001). Of all the cases, the burn size ranged from 0.2% to 5% TBSA, mostly less than 1% (85.92%, 177/206); third‐degree burns accounted for 98.54% (203/206). Patients admitted after 3 weeks post‐injury accounted for 42.23% (87/206). All patients were cured, and most of them were by surgeries (70.87%, 146/206). The results of the study show that low‐temperature burn injury features a predictable morbidity among different seasons, a higher prevalence in adult women and a frequent occurrence at home. The wounds of low‐temperature burns are often small in size but deep in depth, and can be easily misdiagnosed as superficial burns. However, most low‐temperature burn wounds require surgical treatment. The study also suggests that based on the characteristics and aetiology of low‐temperature burns, targeted prevention and treatment measures should be mapped out.