ObjectiveAnimal injury is a significant cause of morbidity and mortality worldwide. Dog bites account for tens of millions of injuries annually and the highest risk is among children. However, children may not receive postexposure prophylaxis (PEP) treatment timely and appropriately after rabies exposure. This study aimed to investigate the characteristics and factors associated with PEP treatment of dog and cat bites among left-behind children.DesignA cross-sectional study using questionnaire was conducted in primary and high schools.SettingShenzhen and Shantou cities, Guangdong Province, China.ParticipantsA total of 9380 participants were included and 2236 of them were with a history of dog and cat bites.Results1188 (53.1%) boys and 1048 (46.9%) girls suffered from animal bites. Bitten in holidays was less likely to receive PEP treatment (OR 0.512, 95% CI 0.377 to 0.695) than those bitten in school days. Bitten while being with family (OR 1.418, 95% CI 1.040 to 1.934) and bitten at roadside (OR 1.842, 95% CI 1.297 to 2.171), bitten by unvaccinated animals (OR 1.745, 95% CI 1.246 to 2.443) tended to receive PEP treatment. Compared with unbroken skin, bleeding (OR 1.789, 95% CI 1.165 to 2.745) and laceration (OR 3.834, 95% CI 2.310 to 6.366) were showed as treatment prompting factors.ConclusionsBitten in holidays was found as a risk factor of receiving PEP treatment of animal bites. Certain measures should be taken to raise left-behind children’s awareness of receiving PEP treatment timely and appropriately after dog and cat bites.

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ObjectivesTo examine the patterns and associated factors of road traffic injuries (RTIs) involving autonomous vehicles (AVs) and to discuss the public health implications and challenges of autonomous driving.MethodsData were extracted from the reports of traffic crashes involving AVs. All the reports were submitted to the California Department of Motor Vehicles by manufacturers with permission to operate AV test on public roads. Descriptive analysis and χ2 analysis or Fisher’s exact test was conducted to describe the injury patterns and to examine the influencing factors of injury outcomes, respectively. Binary logistic regression using the Wald test was employed to calculate the OR, adjusted OR (AOR) and 95% CIs. A two-tailed probability (p<0.05) was adopted to indicate statistical significance.Results133 reports documented 24 individuals injured in 19 crashes involving AVs, with the overestimated incidence rate of 18.05 per 100 crashes. 70.83% of the injured were AV occupants, replacing vulnerable road users as the leading victims. Head and neck were the most commonly injured locations. Driving in poor lighting was at greater risk of RTIs (AOR 6.37, 95% CI 1.47 to 27.54). Collisions with vulnerable road users or incidents happening during commute periods led to a greater number of victims (p<0.05). Autonomous mode cannot perform better than conventional mode in road traffic safety to date (p=0.468).ConclusionsPoor lighting improvement and the regulation of commute-period traffic and vulnerable road users should be strengthened for AV-related road safety. So far AVs have not demonstrated the potential to dramatically reduce RTIs. Cautious optimism about AVs is more advisable, and multifaceted efforts, including legislation, smarter roads, and knowledge dissemination campaigns, are fairly required to accelerate the development and acceptance.

Background: Child passenger safety is an important public health problem in China. This study aimed to examine the prevalence of child passenger restraint use while riding in a car in the city of Shantou in China from 2012 to 2017. Methods: Three large-scale cross-sectional observational studies were conducted in 2012, 2015 and 2017, respectively. The observation sites included randomly selected hospitals, kindergartens, and primary and secondary schools. The outcome measures included the changes in percentages of seating position (e.g., front vs. rear), whether sitting on lap, and use of child restraint systems (CRS) or seat belts by year and by age group. Descriptive statistics, Chi-square tests and logistic regression were used to address the study aims. Results: A total of 9858 commuting children aged 17 and younger were observed in passenger cars in Shantou, China during the study. The proportion of children aged 0-5 sitting on adult's lap decreased from 26.6% in 2012 to 24.6% in 2017, while the proportion of CRS use among the children sitting in the rear row increased among children aged 0-5 (from 0.7% in 2012 to 14.2% in 2017) and children aged 6-11 (from 0.7% in 2012 to 2.4% in 2017). Comparing children aged 0-11 in 2012, children in the same ages were less likely to sit in the front row in 2015 (OR = 0.42, 95%CI = 0.37, 0.48) and in 2017 (OR = 0.27, 95%CI = 0.23, 0.31). Children aged 0-11 were more likely to sit in the rear row with CRS use in 2015 (OR = 8.50, 95%CI = 5.44, 13.28) and in 2017 (OR = 10.95, 95%CI = 7.02, 17.08) comparing with children in the same ages in 2012. As for children aged 12-17, they were more likely to use seat belt in 2017 (OR = 1.40, 95%CI = 1.06, 1.85) compared with those children in 2012. Conclusions: While child passenger safety behaviors improved from 2012 to 2017 in Shantou, China, more efforts are needed to protect child passengers from injuries.