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BACKGROUND: Lung cancer is the malignant tumor with the highest incidence rate and the heaviest disease burden in China. In recent years, lung cancer has shown a high incidence trend, seriously affecting the health of the population. In this paper, we analyze the characteristics of lung cancer incidence in 2019 and the trend of incidence rate from 2010-2019 in the tumor registration area of Gansu province, in order to provide a reference basis for the development of lung cancer prevention and control strategies in Gansu province. METHODS: By analyzing the cases of lung cancer incidence in the tumor registration area of Gansu province in 2019, we calculated the incidence rate, medium incidence rate, world incidence rate and other related indexes; we used Joinpoint to calculate the annual percentage change (APC) for trend analysis. RESULTS: In 2019, a total of 3757 new cases of lung cancer were reported in Gansu province, accounting for 14.96% of all new malignant tumors. The incidence rate, medium incidence rate and world incidence rate and world rate of lung cancer were 40.52/105, 25.78/105, 25.86/105; and the cumulative rate of 0-74 years old, and the truncation rate of 35-64 years old were 3.23%, 40.03/105, respectively. The incidence of lung cancer rises with age, and is high in the age group of 40 years and above, and the incidence peaks in the male and female populations in the group of 75 years and above, and the group of 80 years and above, respectively. The crude incidence rate of lung cancer in the tumor registration area of Gansu province from 2010-2019 showed an overall increasing trend, and the rate of increase was relatively fast, with an APC 5.39% (P<0.05); Separately, according to gender, urban and rural areas, the incidence of lung cancer in all populations showed an increasing trend, and the APC of male, female, urban and rural populations were 4.98%, 6.39%, 6.26%, and 4.64%, respectively (all P<0.05). According to the trend analysis of lung cancer incidence rate by age group, only lung cancer incidence in the age group of 65 years and above increased at an annual average rate of 4.15% (P<0.05). CONCLUSIONS: The incidence rate of lung cancer in the tumor registration area of Gansu province from 2010 to 2019 shows a rising trend year by year, and there are differences in the incidence of lung cancer in people of different genders, regions and age groups, so comprehensive prevention and control work should be carried out for the key populations of lung cancer incidence.

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Objective: The epidemiological characteristics and trend of occupational pneumoconiosis in Hubei Province from 2011 to 2020 were analyzed to provide a theoretical basis for the development of prevention and control strategies for occupational pneumoconiosis. Methods: In March 2021, the data of newly occupational pneumoconiosis in Hubei Province from 2011 to 2020 were collected by the Occupational Diseases and Health Risk Factors Information Surveillance System. Descriptive statistics were adopted to analyze basic situation, region, industry, type of disease, year of diagnosis, age of onset and dust exposureduration of the cases. Results: From 2011 to 2020, a total of 7203 new cases of occupational pneumoconiosis were reported in Hubei Province, including 7125 (98.92%) men and 78 (1.08%) women. The average age of onset was (54.03±10.12) years old. The average duration of dust exposure was (13.80±9.56) years. The mainly types of pneumoconiosis were coal worker's pneumoconiosis (3593 cases, 49.88%) and silicosis (3301 cases, 45.83%). The cases included 4814 cases (66.83%) of stage Ⅰ pneumoconiosis, 1270 cases (17.63%) of stage Ⅱ and 1119 cases (15.54%) of stage Ⅲ. New cases mainly distributed in Yichang City (1586 cases, 22.02%), Shiyan City (1257 cases, 17.45%), Enshi Tujia and Miao Autonomous Prefecture (1050 cases, 14.58%) and Huangshi City (1009 cases, 14.01%), and occurred most frequently in coal mining and washing industry (3743 cases, 51.96%) and nonmetallic mining industry (582 cases, 8.08%). Pneumoconiosis patients of stage Ⅲ were mainly distributed in small enterprises (401 cases, 50.25%) and domestic enterprises (796 cases, 99.75%) . Conclusion: Coal worker's pneumoconiosis and silicosis accounted for the vast majority pneumoconiosis in Hubei Province. The new cases show obvious regions, industries and type of disease distribution. We should strengthen occupational health supervision in small and domestic enterprises.

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Objective: The epidemiological characteristics of occupational pneumoconiosis in Gansu Province from 2010 to 2018 were analyzed to provide a theoretical basis for the development of prevention and control strategies for pneumoconiosis in Gansu Province. Methods: In March 2019, the data of newly diagnosed occupational pneumoconiosis in 2010-2018 and the data of occupational pneumoconiosis as of December 31, 2018 in Gansu Province were collected by the Occupational Disease and Occupational Health Information Monitoring System. The stage, type of disease, time, enterprise information of newly diagnosed pneumoconiosis and the region, type of disease, enterprise information of existed pneumoconiosis were analyzed. Results: From 2010 to 2018, a total of 1269 new cases of occupational pneumoconiosis were reported in Gansu Province, including 818 cases (64.46%) of stage I pneumoconiosis, 284 cases (22.38%) of stage II pneumoconiosis, 167 cases (13.16%) of stage III pneumoconiosis. Silicosis, coal worker's pneumoconiosis and cement pneumoconiosis ranks the top 3, accounting for 55.71% (707/1269) , 37.67% (478/1269) and 3.78% (48/1269) of the total number, respectively. The new cases of stage III pneumoconiosis were mainly distributed in private economy (58.09%, 79/136) and small-sized (59.88%, 97/162) enterprises. As of December 31, 2018, Gansu Province had reported a total of 12211 cases of occupational pneumoconiosis, of which 58.16% (7102/12211) were coal worker's pneumoconiosis and 28.15% (3438/12211) were silicosis. Mainly distributed in Baiyin city (21.63%, 2641/12211) , Lanzhou city (17.79%, 2172/12211) and Wuwei city (13.73%, 1676/12211) . The existed cases of pneumoconiosis are mainly distributed in state-owned economy (76.95%, 9396/12211) and large-sized (54.23%, 6622/12211) enterprises. Conclusion: Silicosis and coal worker's pneumoconiosis are the main type of pneumoconiosis in Gansu Province. And the number of silicosis reported is on the rise, which should be taken seriously. Pneumoconiosis in Gansu Province is mainly distributed in state-owned economy and large-sized enterprises. However, pneumoconiosis patients in private economy and small-sized enterprise is generally serious, so it should be the focus of supervision.

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Objective To investigate epidemiological characteristics of measles cases and the influencing factors of transmission of measles among floating children in Shenzhen. Methods Descriptive study was conducted in data which were collected from the report system of statutory infectious diseases from 2016 to 2018 in Shenzhen. Case-control study was conducted between 89 cases and relative controls. Results A total of 108 measles cases in floating children were reported from 2016 to 2018, and the incidence trend showed a year-on-year decline( 2trend=68.35, P<0.001). Analysis showed that nosocomial exposure in 7 to 21 days ago(OR=7.80, 95% CI:3.51-17.35, P<0.001), having been to the crowded places(OR=3.37, 95% CI:1.52-7.47, P=0.002), having contact history of fever-rash patients(OR=4.57, 95% CI:1.41-14.84, P=0.007) were influencing factors of transmission of measles among floating children, and immunization at the prescribed time(OR=0.12, 95% CI:0.04-0.32, P<0.001) was a protective factor for measles. Conclusions Vaccination must be strengthened for floating children. Medical institutions should avoid becoming a key place for measles transmission, and need to strengthen health education.

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Objective To understand the epidemiological characteristics of the newly diagnosed pulmonary tuberculosis patients in Meishan City from 2014 to 2019, and to carry out trend prediction and analysis, so as to provide theoretical basis for the formulation of prevention and control strategies. Methods Raw data of newly diagnosed tuberculosis patients in Meishan City from 2014 to 2019 were collected from Meishan Statistical Yearbook. And Excel was used to manage the raw data. The epidemiological characteristics of newly diagnosed pulmonary tuberculosis patients in Meishan City from 2014 to 2019 were analyzed, and the epidemic trend of pulmonary tuberculosis in Meishan City in the next two years was predicted by grey GM(1,1) model. Results From 2014 to 2019, a total of 1 832 smear positive pulmonary tuberculosis cases were reported in Meishan City. The annual average reported incidence rate of smear positive pulmonary tuberculosis was 26.95/100 000. The overall incidence rate of smear positive pulmonary tuberculosis showed a downward trend. Among the 1 832 newly diagnosed tuberculosis cases, the majority were male, aged 31~40 years old, spring onset, township residence and rural residence, farmers and students. The predicted incidence of pulmonary tuberculosis in Meishan City from 2014 to 2019 based on grey GM(1,1) model is basically consistent with the actual incidence, and the predicted incidence of pulmonary tuberculosis in 2020 and 2021 are 27.68/100 000 and 30.25/100 000 respectively. Conclusion The incidence of newly diagnosed pulmonary tuberculosis in Meishan City from 2014 to 2019 has a downward trend in general, while it may increase in the next two years, so the prevention and control measures for high-risk groups, regions and seasons should be strengthened.

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Objective: To analyze the epidemiological characteristics of occupational diseases in Gansu Province, China in 2010-2017, and to provide a scientific basis for the prevention and control of occupational diseases. Methods: The cluster sampling method was adopted to make statistical analysis of 1339 cases of occupational disease reported by "occupational disease and occupational health information monitoring system" in Gansu province from 2010 to 2017, to investigate the diseases, regions and industries of occupational diseases in June 2018. Results: A total of 1339 cases of occupational diseases (39 types, 8 classes) were diagnosed and reposed in 2010-2017. The three most frequent diseases were pneumoconiosis (87.53%, 1172/1339), occupational poisonings (5.83%, 78/1339), and occupational ear, nose, and throat (ENT) diseases (3.14%, 42/1339). The cases of silicosis accounted for 54.61% (640/1172) of all cases of pneumoconiosis, the second was coalworker pneumoconiosis, which accounted for 38.57% (452/1172). In the cases of occupational poisonings, 32.05% (25/78) suffered from carbon monoxide poisoning. Patients with occupational diseases were reported in 14 districts of Gansu, mostly in Lanzhou (27.52%, 347/1261), Jinchang (16.57%, 209/1261), and Baiyin (14.20%, 179/1261). The reported cases are mainly concentrated in mining (71.56%, 468/654) and manufacturing (21.87%, 143/654), the types of state-owned economy (55.63%, 692/1244) and private economy (33.68%, 419/1244), large (43.41%, 540/1244) and small enterprises (35.21%, 438/1244) in 2010-2017 in Gansu. Conclusion: The pneumoconiosis caused by silicious and coal dust and the occupational poisonings caused by carbon monoxide seem to be the main occupational hazards in Gansu province. Occupational diseases occur in all districts of Guangzhou and in various industries. The state-owned economy and private sector, large and small enterprises should be the focuses of occupational health supervision.

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Objective: To analyze the characteristics and influencing factors of new occupational diseases in Tianjin from 2008 to 2017, and to provide scientific basis for the formulation of prevention and control measures for occupational diseases in Tianjin. Methods: In 2018, data on the new occupational disease in Tianjin from 2008 to 2017 were collected from the China Disease Prevention and Control Information System. Statistical analysis was performed on the basic situation, the nature of the company, and the distribution of the industry. Results: A total of 5201 cases of occupational diseases were reported in Tianjin from 2008 to 2017, mainly including pneumoconiosis (92.37%) , followed by occupational poisoning (2.88%) , and the third occupational ENT disease (2.31%) . The male cases were higher than females, with a median age of 56 years and a median of 20 years of service. The most reported area was Hedong District (26.86%) . The economic type and scale of the cases belonged to state-owned large and medium-sized enterprises. The industry is mainly composed of non-metallic mineral products, and there are significant differences in the composition ratios of its economic type (χ(2)=19240.00, P<0.01) , enterprise size (χ(2)=3883.00, P<0.01) and industry (χ(2)=52050.00, P<0.01) . Conclusion: Pneumoconiosis, occupational poisoning and occupational ENT diseases are the key prevention and control occupational diseases in Tianjin city. It is necessary to strengthen the prevention and control of occupational diseases in large and medium-sized state-owned enterprises, and to respond to occupational disease hazards in such key industries as the manufacturing industry so as to protect the health of occupational groups.

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Objective: To explore the characteristics of new occupational diseases in Changzhou City from 2006 to 2018, and provide scientific basis for relevant departments to formulate prevention and control strategies. Methods: In July 2019, the data of new occupational diseases in Changzhou City from 2006 to 2018 were collected, and the distribution of new occupational diseases, such as disease types, regions, population, industries, economic types and scale of enterprises were analyzed. Results: From 2006 to 2018, a total of 432 new cases of occupational diseases were reported in Changzhou, mainly including occupational pneumoconiosis and other respiratory diseases (175 cases, 40.51%) , occupational chemical poisoning (130 cases, 30.09%) , and occupational otorhinolaryngological and oral diseases (83 cases, 19.21%) . There were 378 males (87.50%) and 54 females (12.50%) . The gender distribution of new occupational diseases in different categories was statistically significant (χ(2)=32.12, P<0.01) . The average age of onset was (48.3±12.2) years, of which 40-49 years (152 cases, 35.19%) were the most. The age distribution of new occupational diseases in different categories was statistically significant (χ(2)=157.53, P<0.01) . The average length of service was (9.38±9.05) years, and most of them were 1-9 years (175 cases, 40.51%) . Manufacturing industry (290 cases, 67.13%) and mining industry (78 cases, 18.06%) are the major industries; private economic enterprises (274 cases, 63.43%) and state-owned economic enterprises (74 cases, 17.13%) are the major economic types; small enterprises (295 cases, 68.29%) and medium-sized enterprises (75 cases, 17.36%) are the major enterprises. Conclusion: We should strengthen the prevention and control of occupational diseases in key areas, people, industries, etc, and the employer, workers and government department should exercise their rights and obligations together to do a good job in the prevention and control relevant of occupational diseases.

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Objective@#To explore the characteristics of new occupational diseases in Changzhou City from 2006 to 2018, and provide scientific basis for relevant departments to formulate prevention and control strategies.@*Methods@#In July 2019, the data of new occupational diseases in Changzhou City from 2006 to 2018 were collected, and the distribution of new occupational diseases, such as disease types, regions, population, industries, economic types and scale of enterprises were analyzed.@*Results@#From 2006 to 2018, a total of 432 new cases of occupational diseases were reported in Changzhou, mainly including occupational pneumoconiosis and other respiratory diseases (175 cases, 40.51%) , occupational chemical poisoning (130 cases, 30.09%) , and occupational otorhinolaryngological and oral diseases (83 cases, 19.21%) . There were 378 males (87.50%) and 54 females (12.50%) . The gender distribution of new occupational diseases in different categories was statistically significant (χ2=32.12, P<0.01) . The average age of onset was (48.3±12.2) years, of which 40-49 years (152 cases, 35.19%) were the most. The age distribution of new occupational diseases in different categories was statistically significant (χ2=157.53, P<0.01) . The average length of service was (9.38±9.05) years, and most of them were 1-9 years (175 cases, 40.51%) . Manufacturing industry (290 cases, 67.13%) and mining industry (78 cases, 18.06%) are the major industries; private economic enterprises (274 cases, 63.43%) and state-owned economic enterprises (74 cases, 17.13%) are the major economic types; small enterprises (295 cases, 68.29%) and medium-sized enterprises (75 cases, 17.36%) are the major enterprises.@*Conclusion@#We should strengthen the prevention and control of occupational diseases in key areas, people, industries, etc, and the employer, workers and government department should exercise their rights and obligations together to do a good job in the prevention and control relevant of occupational diseases.

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Objective@#To analyze the characteristics and influencing factors of new occupational diseases in Tianjin from 2008 to 2017, and to provide scientific basis for the formulation of prevention and control measures for occupational diseases in Tianjin.@*Methods@#In 2018, data on the new occupational disease in Tianjin from 2008 to 2017 were collected from the China Disease Prevention and Control Information System. Statistical analysis was performed on the basic situation, the nature of the company, and the distribution of the industry.@*Results@#A total of 5201 cases of occupational diseases were reported in Tianjin from 2008 to 2017, mainly including pneumoconiosis (92.37%) , followed by occupational poisoning (2.88%) , and the third occupational ENT disease (2.31%) . The male cases were higher than females, with a median age of 56 years and a median of 20 years of service. The most reported area was Hedong District (26.86%) . The economic type and scale of the cases belonged to state-owned large and medium-sized enterprises. The industry is mainly composed of non-metallic mineral products, and there are significant differences in the composition ratios of its economic type (χ2=19240.00, P<0.01) , enterprise size (χ2=3883.00, P<0.01) and industry (χ2=52050.00, P<0.01) .@*Conclusion@#Pneumoconiosis, occupational poisoning and occupational ENT diseases are the key prevention and control occupational diseases in Tianjin city. It is necessary to strengthen the prevention and control of occupational diseases in large and medium-sized state-owned enterprises, and to respond to occupational disease hazards in such key industries as the manufacturing industry so as to protect the health of occupational groups.

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Objective@#To analyze the epidemiological characteristics of occupational diseases in Gansu Province, China in 2010-2017, and to provide a scientific basis for the prevention and control of occupational diseases.@*Methods@#The cluster sampling method was adopted to make statistical analysis of 1339 cases of occupational disease reported by "occupational disease and occupational health information monitoring system" in Gansu province from 2010 to 2017, to investigate the diseases, regions and industries of occupational diseases in June 2018.@*Results@#A total of 1339 cases of occupational diseases (39 types, 8 classes) were diagnosed and reposed in 2010-2017. The three most frequent diseases were pneumoconiosis (87.53%, 1172/1339), occupational poisonings (5.83%, 78/1339), and occupational ear, nose, and throat (ENT) diseases (3.14%, 42/1339). The cases of silicosis accounted for 54.61% (640/1172) of all cases of pneumoconiosis, the second was coalworker pneumoconiosis, which accounted for 38.57% (452/1172). In the cases of occupational poisonings, 32.05% (25/78) suffered from carbon monoxide poisoning. Patients with occupational diseases were reported in 14 districts of Gansu, mostly in Lanzhou (27.52%, 347/1261), Jinchang (16.57%, 209/1261), and Baiyin (14.20%, 179/1261). The reported cases are mainly concentrated in mining (71.56%, 468/654) and manufacturing (21.87%, 143/654), the types of state-owned economy (55.63%, 692/1244) and private economy (33.68%, 419/1244), large (43.41%, 540/1244) and small enterprises (35.21%, 438/1244) in 2010-2017 in Gansu.@*Conclusion@#The pneumoconiosis caused by silicious and coal dust and the occupational poisonings caused by carbon monoxide seem to be the main occupational hazards in Gansu province. Occupational diseases occur in all districts of Guangzhou and in various industries. The state-owned economy and private sector, large and small enterprises should be the focuses of occupational health supervision.

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Objective To analyze the characteristics and related factors of the incidence of intestinal infectious diseases in children.Methods 180 children with intestinal infectious diseases who were treated from July 2012 to July 2015 in our hospital were radomly selected.Meanwhile,180 healthy children were randomly selected from pediatric hospital examination as control group.Then,according to the clinical data and epidemiological data of these children,the number of cases were compared,and these children were from different age,different regions and different types of infections.The incidence factors of univariate and multivariate Logistic analysis were compared.Results In terms of age,patients younger than 1 year of age were 105 cases,between the ages of 1 -3 years were 37 cases, patients older than 3 years were 38 cases,the proportion of younger than 1 year was 58.3%,the proportion of patients between 1 -3 years of age was 20.6%,the proportion of older than 3 years of age was 21.1%,the proportion of patients younger than 1 year of age compared with the proportion of patients with the other two groups had significant differences (P <0.05).In the area,117 cases were from rural areas and the incidence rate was 65.0%,63 cases were from the city,and the incidence rate of the city was 35.0%,which was significantly lower than the incidence of rural areas,the difference was statistically significant (P <0.05).On the type of infection,parenteral infection was 24 cases,bacterial infection was 75 cases,viral infection was 81 cases,parenteral infection rate was 13.3%,bacterial infection rate was 41.7%,virus infection rate was 45.0%,parenteral infection was significantly lower than the other two infection prevalence groups,the difference was statistically significant (P <0.05 ).After univariate analysis, observation and control groups were compared,showed that children washing their hands before meals,children washing their hands after stool,parents washing their hands after stool,no tableware disinfection,ground nails,indoor flies and intestinal infectious diseases in children were concerned (P <0.05).After multivariate Logistic analysis,OR values of no tableware disinfection and indoor flies were greater than 1,they were risk factors,and ground nails,OR value of children and children wash their hands before meals and after hand washing were less than 1,they were protective factors.Conclusion Pediatric intestinal infectious diseases mainly occur in infants less than 1 year old, and the incidence has temporal and spatial distribution,multiviral and bacterial infections,the analysis by the relevant factors,including age,time,space and infectious pathogens.And children washing their hands before meals,washing their hands after stool,parents washing their hands after stool,no tableware disinfection,ground nails,indoor flies and intestinal infectious diseases in children -related,but not sterilized tableware and interior flies belong to risk factors and attendance nails,children and children wash their hands before meals and after hand washing belong to protection factor.