Background: Bystander cardiopulmonary resuscitation can improve the survival rate of patients with out-of-hospital cardiac arrest. Teaching cardiopulmonary resuscitation in schools by teachers is one of the ways to increase the number of bystanders who can perform cardiopulmonary resuscitation. Nevertheless, there have been no studies on the readiness of teachers in Hong Kong to teach cardiopulmonary resuscitation in their schools. Objective: To assess whether secondary school teachers are prepared to teach their students cardiopulmonary resuscitation. Methods: This was a questionnaire survey. Teachers from 22 local secondary schools were recruited. The questionnaires were designed with questions covering their knowledge about cardiopulmonary resuscitation and attitudes towards teaching their students cardiopulmonary resuscitation. A knowledge score and attitude score were calculated. Result: 557 teachers completed the questionnaires. Most had never witnessed a cardiac arrest and over half of them had never been trained cardiopulmonary resuscitation or use of an automated defibrillator. About 25% of them answered all questions on knowledge wrong. Only 25% supported teaching cardiopulmonayr resuscitation in schools and 32% were willing to teach it. Legal liability was a major concern. Conclusion: Local teachers' readiness for teaching students cardiopulmonary resuscitation in secondary schools is likely poor. More efforts are required to raise their knowledge level on cardiopulmonary resuscitation and instill a positive attitude towards cardiopulmonary resuscitation education in schools.

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This paper studies the network structure of geographical indication agricultural products in the field of e-commerce in Sichuan Province, and discusses the joint mechanism of geographical indication brands based on network structure. Taking the geographical indication products as the node, the consumer’s purchase behavior is the connection relationship, and the network structure of the geographical indication products is analyzed from the perspective of consumer behavior, and then the regional brand creation is based on this.This paper constructed a product——product network——brand alliance——regional brand geographical indication agricultural product regional brand creation path. The paper focuses on the resource dependent brand joint behavior based on individual interests, and the joint behavior of geographically dependent brands based on the perspective of regional interests. When the brand joint starting point is based on individual interests, it will tend to choose resource-based agricultural product brands that have strong commodity-related strength and can bring the greatest consumer transformation to themselves; when the brand joint starting point is to promote the regional-based regional economy, it will tend to start from the cluster-based brand alliance, emphasizing the development of a good geographical indication agricultural product brand to promote the development of a geographically-improved GI brand.