Abstract:Objective To investigate the epidemiological characteristics of accidental injuries and the situation of out-of-hospital treatment in Zhoushan Island New District, and to analyze the possible problems in the process of first aid treatment on the spot. Methods Retrospective analysis was carried out on accidental injury data from January to December 2019 by 120 ambulances sent to the emergency department of the hospital with complete pre-hospital first aid records, 941 cases met the inclusion criteria, and SPSS 17.0 was used for statistical analysis. Results Males were more injured accidentally than females in Zhoushan Island New District, with a rate of 1.36∶1. Age is concentrated in 30-50 years old, and education level is concentrated in primary school and below. The time distribution of different occupational injuries: there were two peak periods of fishermen injuries from February to April and from September to November; the injuries of migrant workers in construction sites were mainly from February to March and from July to September; the injuries of workers and students were mainly from January to February and from June to August; the incidence time distribution of professional and technical personnel, preschool children and other occupations had no obvious peak period. The top 3 injury types were fall/sprain, traffic injury and bluntforce trauma and the main injury sites were upper limbs and head. The incidence of traffic injury was the highest among the migrant workers in the construction site and the professional technicians, and the incidence of fall/sprain was the highest in the other occupations. The duration of serious injury and light injury were (3.5±3.3) h and (1.7±1.6) h respectively. The duration of serious injury was longer than that of light injury (P<0.05) and the degree of injury was proportional to the duration of the disease. There were more minor injuries among the patients treated with first aid on the spot than serious injuries, and there was significant difference between the patients treated with first aid on the spot (P<0.05). Conclusion Relevant departments should strengthen the supervision of various industries and the training of risk prevention in safe operations. The hospital makes a targeted emergency plan to improve the success rate of pre-hospital first aid.