*3.4. Analysis of Co-occurring Keywords*

After the vital co-occurrence network analysis, the keywords are summarized and classified according to the keyword frequency and research direction, as shown in Table 5.

These manually selected keywords are roughly divided into five main topics. The keywords of topic one mainly include "global health (2583)", "quality of life (933)"," mortality (712)", "public health (535)", "survival (200)", "health status (52)". Topic 1 is the main goal and direction of global health research, namely reducing global abnormal mortality through global health governance and international cooperation, meeting the minimum survival needs of people around the world, gradually enhancing the health status, and continuously improving the quality of life of the public. The second major topic in global health research is the threat factors that specifically affect global public health, including "infectious diseases (779)", "cancer (355)", "antibiotic resistance (39)", "mental health issues (50)", "obesity (348)", "climate change (56)", etc. The health prevention and treatment of some specific groups (children, women, students) is the third topic focused by scholars in the global health field. The keywords included in the fourth topic are "developing countries (399)", "Africa (384)", "middle-income country (62)", and the United States (348). The fifth is a relatively macro topic, mainly on the cooperation mechanism of global health, global health management, prevention of global health risks, and professional education of global health.


**Table 5.** List of keywords information.
