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Factors associated with injuries among tornado victims in Yancheng and Chifeng, China.

ABSTRACT: BACKGROUND:As extremely violent meteorological disasters, tornadoes often cause serious casualties. The study aims to analyze the characteristics and causes of tornado injuries in China under certain humanistic and geographical conditions. METHODS:A random sampling questionnaire survey was developed and distributed to tornado victims from two separate occurrences: an Enhanced Fujita 4 tornado in Yancheng, and a Fujita 3 tornado in Chifeng. The information of demographic characteristics, disaster environment, and individual behaviors in victims was collected. Chi-square test and binary logistic regression were used to analyze influencing factor of injuries. RESULTS:A total of 94 valid questionnaires (participation rate 95.9%) were finally collected in Yancheng tornado and 67 valid questionnaires (participation rate 93.1%) in Chifeng tornado. Residents' annual income (OR?=?0.10, 95% CI 0.02-0.50, P?=?0.005), degree of house collapse (OR?=?183.12, 95% CI 8.04-4173.34, P?=?0.001) have a significant impact on the probability of injury. Differences in tornado disaster drill awareness (P?=?0.009), individual behaviors (P?=?0.011) and fear level (P?=?0.011) significantly affected the incidence of trauma. Whether victims were indoors or not has no statistical difference on injuries in China. CONCLUSIONS:Our study clarifies risk factors and is conducive to the expansion of the investigation in tornado casualties. The government should improve the wind-resistance of residential buildings. Victims should participate in disaster prevention drills to take effective disaster avoidance actions.

SUBMITTER: Deng Q

PROVIDER: S-EPMC6878644 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Factors associated with injuries among tornado victims in Yancheng and Chifeng, China.

Deng Qiangyu Q Lv Yipeng Y Zhao Fangjie F Yu Wenya W Dong Junqiang J Zhang Lulu L

BMC public health 20191125 1

<h4>Background</h4>As extremely violent meteorological disasters, tornadoes often cause serious casualties. The study aims to analyze the characteristics and causes of tornado injuries in China under certain humanistic and geographical conditions.<h4>Methods</h4>A random sampling questionnaire survey was developed and distributed to tornado victims from two separate occurrences: an Enhanced Fujita 4 tornado in Yancheng, and a Fujita 3 tornado in Chifeng. The information of demographic characteri ...[more]

PMID: 31767001

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Project description:ObjectivesFew studies of tornado injuries have considered differences related to damage levels and Enhanced-Fujita (EF) scale ratings. This study aimed to evaluate the pattern, spectrum and geographical distribution of injuries related to the Yancheng tornado and provide guidelines for effective emergency medical strategies.SettingThe study was conducted at three hospitals which treated patients with injuries related to the tornado in Yancheng, China.ParticipantsWe obtained the records of 451 patients with tornado-related injuries. Of these, 401 valid trauma medical records were included; 50 other records were excluded for insufficient information. Informed consent was obtained from all patients by telephone.Main outcome measuresWe analysed patients' injury sites and types and used the abbreviated injury scale (AIS) to standardise injury severity. Geographical information system and non-parametric tests were used to analyse the effects of geographical factors on casualties.ResultsWomen, middle-aged/elderly individuals (age>45 years) and children/adolescents (<18 years) accounted for 51.62%, 77.30% and 12.47% of injured patients, respectively. This caused a dumbbell-shaped age distribution. Head (46.63%), body surface (39.90%) and lower-limb (29.43%) injuries were common, as were soft-tissue injuries (90.77%), fractures (38.90%) and organ damage (19.70%). Minor injuries (AIS=1) were common (60.85%), whereas critical/fatal injuries (AIS≥5) were very rare (2.50%). Although the densities of injury varied among damage levels and EF ratings for different areas, area-wise differences in injury severity (AIS scores) were not significant (p>0.05).ConclusionWe recommend the use of helmets to prevent head injuries caused by tornadoes and suggest prioritising the treatment of high-risk head and multiple-organ injuries. Additionally, medical rescuers should follow the 'same quality and different quantity' principle: the injured in all affected areas should receive equal attention, but numbers of medical personnel should be allocated based on the level of effects from the tornado.

Project description:BackgroundTo summarize the general status of nonsuicidal self-injury (NSSI) behaviour and the characteristics of junior high school students and to determine the risk factors associated with NSSI behaviour.MethodsFive middle schools in the rural and urban areas of Hainan Province were randomly selected for this cross-sectional study, and junior high school students were administered questionnaires, including the General Sociodemographic Questionnaire, Ottawa Self-Injury Scale, Anxiety Self-Rating Scale, Depression Self-Rating Scale, Adolescent Lifestyle Scale, and Parenting Style Scale.ResultsThe NSSI rate among junior high school students in Hainan Province was 28.9%, with a higher prevalence among girls than boys (P < 0.05). The age range was 11-16 years, with a mean age of 13.08 ± 0.911 years. The most common form of self-injury was scratching/bruising, followed by hitting oneself, pulling out hair, biting, head banging, and cutting. The NSSI methods of scratching/bruising, hitting oneself and cutting more commonly occurred in girls than boys (P < 0.05). The most common sites of self-injury were the face, scalp, lips, forearm/elbow, axilla/wrist, hands/fingers, and thighs/knees. Significant differences were observed in the distribution of self-injury sites (nose, lips, genitals, and axillae/wrists) between the two genders (p < 0.05). The most important motivation for undertaking NSSI behaviours was to release negative emotions. The risk factors affecting NSSI behaviours were female gender (OR = 1.793), depression (OR = 1.961), anxiety (OR = 1.495), interpersonal relationship factors (OR = 1.099), academic stress factors (OR = 1.062), maternal emotional warmth (OR = 0.97), and maternal overinterference (OR = 1.036).ConclusionsThe NSSI rate among junior high school students in Hainan was 28.9%, affecting girls more than boys. The form and site of self-injury between boys and girls were significantly different. The motivation for committing self-injurious behaviours was mainly to regulate bad emotions. Risk factors for NSSI behaviours included female gender, anxiety, depression, interpersonal relationship factors, academic stress factors, and maternal emotional overinterference, while maternal emotional warmth was a protective factor.

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Factors associated with injuries among tornado victims in Yancheng and Chifeng, China.

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Factors associated with injuries among tornado victims in Yancheng and Chifeng, China.

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