[An analysis of global research on SARS-CoV-2].

The SARS-CoV-2 has been spread to 26 countries around the world since its outbreak. By February 16, 2020, more than 68 000 people had been diagnosed with COVID-19. Researchers from all over the world have carried out timely studies on this public health emergency and produced a number of scientific publications. This review aims to re-analyze and summarize the current research findings in a timely manner to guide scholars in relevant fields to further SARS-CoV-2 research and assist healthcare professionals in their work and decision-making. The SARS-CoV-2 related terms were selected in both English and Chinese and were searched in several major databases, including Pubmed, Web of Science, CNKI, Wanfang, and VIP databases. The reference list of each search result was screened for relevance, which was further supplemented to the search results. The included studies were categorized by topics with key characteristics extracted, re-analyzed, and summarized. A total of 301 articles were finally included with 136 in Chinese and 165 in English. The number of publications has rapidly increased since mid-January, 2020, and a peak day was 6th February on which 50 articles were published. The top three countries publishing articles were China, the United States and the United Kingdom. The Lancet and its specialty journals have published the most articles, with contribution also from journals such as New England Journal of Medicine ( NEJM), The Journal of the American Medical Association ( JAMA), and Nature. All articles were categorized into epidemiology, clinical diagnosis and treatment, basic research, pregnant women and children, mental health, epidemic prevention & control, and others. The literatures related to SARS-CoV-2 are emerging rapidly. It is necessary to sort out and summarize the research topic in time, which has a good reference value for staff in different positions. At the same time, it is necessary to strengthen the judgment of the quality of literatures.

[Analysis of colliery migrant workers quality of life and its influential factors].

OBJECTIVE: To study colliery migrant workers' quality of life and related influential factors. METHODS: By multi-stage random sampling, 1161 colliery migrant workers were collected and assessed with the SF-36 and the self-made questionnaires. Multiple covariance and optimal scaling regression statistical methods were used to analyze the data. RESULTS: Physiological and mental health filed of colliery migrant workers, the physical functioning (PF), role-physical (RP), bodily pain (BP), general health (GH) and vitality (VT) score of those colliery migrant workers whose working age was less than 5 years higher than those over 10 years. The PF, RP, BP, GH, mental health (MH), VT and SF based within the health group, resulted in a higher score, compared to those who suffer from chronic diseases. The RP, GH and social functioning (SF) based within the mild labor intensity, resulted in a higher score, compared to those who severe labor intensity. The PF and RE based within the non-initial coal mine work, resulted in a higher score, compared to those who initial coal mine work. The PF, BP and VT based within the pre-employment physical examination, resulted in a higher score, compared to those who non pre-employment physical examination. The MH based within the smoking, resulted in a higher score, compared to those who no smoking. These differences were statistical significance (P < 0.05). Multiple factors analysis showed that working age (F = 19.26, P < 0.01), chronic diseases (F = 13.89, P < 0.01) and initial coal mine work (F = 8.48, P < 0.01) were the influential factors of physical component summary (PCS). Labor intensity (F = 5.90, P < 0.01), smoking (F = 10.45, P < 0.01) and chronic diseases (F = 7.91, P < 0.01) were the influential factors of mental component summary (MCS). CONCLUSION: There are some difference in individual characteristics (e. g. working age). Working age, chronic diseases, initial coal mine work, labor intensity, smoking are the influential factors for quality of life.

[Analysis of occupational burnout and its influencing factors of colliery migrant workers in Guizhou Province].

OBJECTIVE: To understand the status of occupational burnout of colliery migrant workers and its influencing factors. METHODS: The occupational burnout of 1161 colliery migrant workers in Jinsha County, Guizhou Province was measured with MBI-GS and the self-made questionnaire. RESULTS: All dimensions of MBI-GS Cronbach's α coefficient was in the range of 0.86-0.88, all 15 items of MBI-GS were subjected to factor analysis, and three latent factors were identified, which explained 68.86% of the total variance and consisted with the theory model. The score of occupational burnout of each dimension, differences in different individual characteristics (physical examination, sleep, et al) were statistically significant (P <0.05). The influence factors of occupational burnout of colliery migrant workers were physical examination, chronic disease, smoking, physical exercise, sleep, initial work in coal mine, production post and labor intensity. CONCLUSION: MBI-GS can be used to study the occupational burnout of colliery migrant workers. Different individual characteristics effect the occurrence of occupational burnout.