Objective:To explore the incidence and mortality of digestive system cancers, and the trend of the disease burden attributed to different risk factors in population in China.Methods:Data were obtained from the GLOBOCAN 2020 and the Global Burden of Disease Study in 2019 databases and only the data from the Chinese population were included. Using Excel 2019 and R 4.2.1 software, indicators including age-standardized incidence rate (ASIR), age-standardized mortality rate (ASMR), age-standardized disability-adjusted life year (DALY) rate and its rate of change were used to illustrate the disease burden of digestive system cancers attributed to different factors and their trends.Results:In 2020, the ASIR of digestive system cancers in China was 83.00/100 000, and the ASMR was 63.80/100 000. The numbers of digestive system cancer cases and deaths increased with age, and more cases and deaths occurred in men than in women in all age groups. The age-standardized DALY rate of esophageal cancer, gastric cancer and liver cancers showed decreasing trends in China from 1990 to 2019 (rate of change: -45.26%, -46.87%, and -65.63%, respectively), whereas the age-standardized DALY rate of pancreatic cancer, colorectal cancer and gallbladder and biliary tract cancer showed increasing trends (rate of change: 67.61%, 30.52%, and 7.21%, respectively). The trend of the mortality rate was consistent with the DALY rate. Compared with the age-standardized DALY rate attributed to behavioral factors, the annual proportion of the age-standardized DALY rate attributed to metabolic factors to the total age-standardized DALY rate of esophageal cancer, liver cancer, pancreatic cancer, and colorectal cancer increased from 1990 to 2019. There was no significant change in the rank of age-standardized DALY rate of gastric cancer, liver cancer, pancreatic cancer, and gallbladder and biliary tract cancer attributed to different risk factors in China from 1990 to 2019, but the rank of certain attributed risk factors for the age-standardized DALY rate of esophageal cancer and colorectal cancer moved ahead (esophageal cancer: high BMI; colorectal cancer: low milk intake, and low whole-grain intake).Conclusions:The incidence and mortality of digestive system cancers was serious in China in 2020, and the annual proportion of the disease burden of digestive system cancers attributed to metabolic factors increased from 1990 to 2019. The rank of attributed risk factors for several digestive system cancers changed significantly.

Objective:To determine the total and age-specific cut-off values of total prostate specific antigen (tPSA) and the ratio of free PSA divided total PSA (fPSA/tPSA) for screening prostate cancer in China.Methods:Based on the Chinese Colorectal, Breast, Lung, Liver, and Stomach cancer Screening Trial (C-BLAST) and the Tianjin Common Cancer Case Cohort (TJ4C), males who were not diagnosed with any cancers at baseline since 2017 and received both tPSA and fPSA testes were selected. Based on Cox regression, the overall and age-specific (＜60, 60-＜70, and ≥70 years) accuracy and optimal cut-off values of tPSA and fPSA/tPSA ratio for screening prostate cancer were evaluated with time-dependent receiver operating characteristic curve (tdROC) and area under curve (AUC). Bootstrap resampling was used to internally validate the stability of the optimal cut-off value, and the PLCO study was used to externally validate the accuracy under different cut-off values.Results:A total of 5 180 participants were included in the study, and after a median follow-up of 1.48 years, a total of 332 prostate cancer patients were included. In the total population, the tdAUC of tPSA and fPSA/tPSA screening for prostate cancer were 0.852 and 0.748, respectively, with the optimal cut-off values of 5.08 ng/ml and 0.173, respectively. After age stratification, the age specific cut-off values of tPSA in the <60, 60-<70, and ≥70 age groups were 3.13, 4.82, and 11.54 ng/ml, respectively, while the age-specific cut-off values of fPSA/tPSA were 0.153, 0.135, and 0.130, respectively. Under the age-specific cut-off values, the sensitivities of tPSA screening for prostate cancer in males <60, 60-70, and ≥70 years old were 92.3%, 82.0%, and 77.6%, respectively, while the specificities were 84.7%, 81.3%, and 75.4%, respectively. The age-specific sensitivities of fPSA/tPSA for screening prostate cancer were 74.4%, 53.3%, and 55.9%, respectively, while the specificities were 83.8%, 83.7%, and 83.7%, respectively. Both bootstrap's internal validation and PLCO external validation provided similar results. The combination of tPSA and fPSA/tPSA could further improve the accuracy of screening.Conclusion:To improve the screening effects, it is recommended that age-specific cut-off values of tPSA and fPSA/tPSA should be used to screen for prostate cancer in the general risk population.

Objective:To provide supports for the cancer prevention and control strategies in China by comparing the disease burden, epidemic trends, 5-year relative survival rate and major determinants of common cancers between China and the United States.Methods:A descriptive secondary analysis was conducted using data extracted from the GLOBOCAN database, the Surveillance, Epidemiology, and End Results database, Global Burden of disease 2019 database, and previous studies. The main indicators included the cases of malignant tumors in different sites, the cases of deaths, the age-standardized incidence (world standard incidence) and mortality (world standard mortality), the 5-year relative survival rate, and population attributable fraction (PAF).Results:In 2022, an estimated 4.825 million new cases and 2.574 million deaths of malignant neoplasms in China. The world standard incidence rate (201.6/100 000) in China was lower than that in the United States (367.0/100 000), and the world standard mortality rate (96.5/100 000) was higher than that in the United States (82.3/100 000). Lung cancer ranked first in the disease burden of malignant tumors in China, the new cases and deaths accounted for 22.0% and 28.5% of all malignant tumors, respectively. The top three malignant tumors in China were breast cancer (11.5%), prostate cancer (9.7%) and lung cancer (9.5%), which were also among the top five causes of death. However, the second to fifth leading causes of death from malignant tumors in China were digestive system tumors (liver cancer 12.3%, stomach cancer 10.1%, colorectal cancer 9.3%, and esophageal cancer 7.3%). From 2000 to 2018, the world standard incidence of malignant tumors showed an increasing trend and the world standard mortality of malignant tumors showed a decreasing trend in China, while the world standard incidence and mortality of malignant tumors in the United States showed a significant decreasing trend after 2000. The incidence of breast cancer, colorectal cancer and thyroid cancer increased rapidly in China, while the incidence and mortality of stomach cancer, liver cancer and esophageal cancer decreased, but they still had a heavy disease burden. From 2003 to 2015, the overall 5-year relative survival rate of malignant tumors increased from 30.9% to 40.5% in China. However, with the exception of esophageal cancer, the 5-year relative survival rates of other major malignant tumors were lower than those in the United States. In 2019, the PAF of malignant tumors death attributable to potential modifiable risk factors was 48.3% in China, which was similar to the United States (49.8%). Of these, smoking was the most important attributable risk factor, and the PAF was more than 30% both in China and the United States. In addition, about 18.8% of malignant tumors were caused by preventable chronic infections, such as hepatitis B virus and Helicobacter pylori, while less than 4% of malignant tumors in the United States were caused by infection.Conclusions:China has made great progress in the prevention and treatment of malignant tumors, but it still faces a serious disease burden. The cancer spectrum is changing from developing countries to developed countries. We should pay attention to modifiable factors, take comprehensive measures, and prevent cancer scientifically.

Objective:To determine the total and age-specific cut-off values of total prostate specific antigen (tPSA) and the ratio of free PSA divided total PSA (fPSA/tPSA) for screening prostate cancer in China.Methods:Based on the Chinese Colorectal, Breast, Lung, Liver, and Stomach cancer Screening Trial (C-BLAST) and the Tianjin Common Cancer Case Cohort (TJ4C), males who were not diagnosed with any cancers at baseline since 2017 and received both tPSA and fPSA testes were selected. Based on Cox regression, the overall and age-specific (＜60, 60-＜70, and ≥70 years) accuracy and optimal cut-off values of tPSA and fPSA/tPSA ratio for screening prostate cancer were evaluated with time-dependent receiver operating characteristic curve (tdROC) and area under curve (AUC). Bootstrap resampling was used to internally validate the stability of the optimal cut-off value, and the PLCO study was used to externally validate the accuracy under different cut-off values.Results:A total of 5 180 participants were included in the study, and after a median follow-up of 1.48 years, a total of 332 prostate cancer patients were included. In the total population, the tdAUC of tPSA and fPSA/tPSA screening for prostate cancer were 0.852 and 0.748, respectively, with the optimal cut-off values of 5.08 ng/ml and 0.173, respectively. After age stratification, the age specific cut-off values of tPSA in the <60, 60-<70, and ≥70 age groups were 3.13, 4.82, and 11.54 ng/ml, respectively, while the age-specific cut-off values of fPSA/tPSA were 0.153, 0.135, and 0.130, respectively. Under the age-specific cut-off values, the sensitivities of tPSA screening for prostate cancer in males <60, 60-70, and ≥70 years old were 92.3%, 82.0%, and 77.6%, respectively, while the specificities were 84.7%, 81.3%, and 75.4%, respectively. The age-specific sensitivities of fPSA/tPSA for screening prostate cancer were 74.4%, 53.3%, and 55.9%, respectively, while the specificities were 83.8%, 83.7%, and 83.7%, respectively. Both bootstrap's internal validation and PLCO external validation provided similar results. The combination of tPSA and fPSA/tPSA could further improve the accuracy of screening.Conclusion:To improve the screening effects, it is recommended that age-specific cut-off values of tPSA and fPSA/tPSA should be used to screen for prostate cancer in the general risk population.

Objective:To provide supports for the cancer prevention and control strategies in China by comparing the disease burden, epidemic trends, 5-year relative survival rate and major determinants of common cancers between China and the United States.Methods:A descriptive secondary analysis was conducted using data extracted from the GLOBOCAN database, the Surveillance, Epidemiology, and End Results database, Global Burden of disease 2019 database, and previous studies. The main indicators included the cases of malignant tumors in different sites, the cases of deaths, the age-standardized incidence (world standard incidence) and mortality (world standard mortality), the 5-year relative survival rate, and population attributable fraction (PAF).Results:In 2022, an estimated 4.825 million new cases and 2.574 million deaths of malignant neoplasms in China. The world standard incidence rate (201.6/100 000) in China was lower than that in the United States (367.0/100 000), and the world standard mortality rate (96.5/100 000) was higher than that in the United States (82.3/100 000). Lung cancer ranked first in the disease burden of malignant tumors in China, the new cases and deaths accounted for 22.0% and 28.5% of all malignant tumors, respectively. The top three malignant tumors in China were breast cancer (11.5%), prostate cancer (9.7%) and lung cancer (9.5%), which were also among the top five causes of death. However, the second to fifth leading causes of death from malignant tumors in China were digestive system tumors (liver cancer 12.3%, stomach cancer 10.1%, colorectal cancer 9.3%, and esophageal cancer 7.3%). From 2000 to 2018, the world standard incidence of malignant tumors showed an increasing trend and the world standard mortality of malignant tumors showed a decreasing trend in China, while the world standard incidence and mortality of malignant tumors in the United States showed a significant decreasing trend after 2000. The incidence of breast cancer, colorectal cancer and thyroid cancer increased rapidly in China, while the incidence and mortality of stomach cancer, liver cancer and esophageal cancer decreased, but they still had a heavy disease burden. From 2003 to 2015, the overall 5-year relative survival rate of malignant tumors increased from 30.9% to 40.5% in China. However, with the exception of esophageal cancer, the 5-year relative survival rates of other major malignant tumors were lower than those in the United States. In 2019, the PAF of malignant tumors death attributable to potential modifiable risk factors was 48.3% in China, which was similar to the United States (49.8%). Of these, smoking was the most important attributable risk factor, and the PAF was more than 30% both in China and the United States. In addition, about 18.8% of malignant tumors were caused by preventable chronic infections, such as hepatitis B virus and Helicobacter pylori, while less than 4% of malignant tumors in the United States were caused by infection.Conclusions:China has made great progress in the prevention and treatment of malignant tumors, but it still faces a serious disease burden. The cancer spectrum is changing from developing countries to developed countries. We should pay attention to modifiable factors, take comprehensive measures, and prevent cancer scientifically.

Objective:To investigate the effects of intensity modulated radiation therapy (imRT) and risk factors of radiation pneumonia caused by imRT in elderly patients with esophageal cancer.Methods:The clinical data of 80 elderly patients diagnosed with esophageal cancer and performed imRT in Traditional Chinese Medicine Hospital of Kunshan from February 2018 to February 2020 were analyzed, and the therapeutic effect and the incidence of adverse reactions were counted.Results:In the 80 patients, 13 patients occurred radiation pneumonia.The results of univariate analysis showed that the gender, smoking history, pathological stage and age had no correlation with radiation pneumonia ( P> 0.05), while tumor location, diabetes, concurrent chemotherapy, reradiotherapy and chronic obstructive pulmonary disease had correlation with the occurrence of radioactive pneumonia ( P<0.05). The levels of V30, V35, V40 between radioactive pneumonia patients and non-radioactive pneumonia patients had no significant differences ( P>0.05), but the levels of V5, V10, V15, V20 and mean lung dose(MLD) between radioactive pneumonia patients and non-radioactive pneumonia patients had significant differences ( P<0.05). The effect of imRT was no remission in 9 cases (11.25%), partial remission in 59 cases (73.75%) and complete remission in 12 cases (15.00%), and the clinical effective rate was 88.75%(71/80). By comparing the adverse reactions caused by imRT, it was found that the incidence of radiation esophagitis, leukopenia, and acute radiation pneumonia were 93.75%(75/80), 12.50%(10/80) and 22.50%(18/80), respectively, with grade 1 and grade 2 adverse reactions. Conclusions:Risk factors for radiation pneumonia in elderly patients with esophageal cancer after imRT include tumor location, diabetes, V5, V10, V15, V20, MLD, concurrent chemotherapy, reradiotherapy and chronic obstructive pulmonary disease.

Objective:To investigate the predictive value of central nervous system specific protein B (S100B)combined with neuron specific enolase(NSE)and serum lactate for severe neonatal hypoxic ischemic encephalopathy(HIE)induced by perinatal asphyxia.Methods:A retrospective study was conducted.A total of 126 neonates admitted to the Intensive Care Unit of Children′s Hospital Affiliated to Xi ′an Jiaotong University due to perinatal asphyxia from April 2019 to April 2022 were selected as the research subjects.Neonates who were clinically diagnosed with HIE were selected as the observation group(45 cases), and those without HIE were selected as the control group(81 cases). The differences of each parameter between the two groups were compared.Univariate and multivariate Logistic regression were used to analyze the indicators that might cause severe HIE.The risk factors were put into the receiver operating characteristic curve(ROC)to analyze their predictive value for prognosis.Results:There were no significant differences in gestational age, weight and gender between the two groups(all P>0.05). The Apgar scores in the observation group were lower than those in the control group; the rates of cardiopulmonary resuscitation, mechanical ventilation, and prolonged labor were higher than those in the control group.These differences are statistically significant(all P< 0.05). Compared with the control group, the observation group showed significantly higher rates of abnormal brain electroencephalogram and cranial magnetic resonance imaging, as well as increased levels of lactate, S100B( t-values for 8 h and 72 h were 13.10 and 2.00 respectively), and NSE( t-values for 8 h and 72 h were 10.85 and 15.57 respectively), all with statistical significance(all P< 0.05). By conducting binary Logistic regression analysis on indicators that might cause HIE, it was found that Apgar scores at 5 minutes and 10 minutes were negatively correlated with the risk of severe HIE( OR<1 and P<0.05). Prolonged labor, as well as factors such as cardiopulmonary resuscitation, mechanical ventilation, S100B concentration at 8 hours after birth, NSE concentration at 8 hours after birth, and lactate levels were all risk factors for poor prognosis( OR>1 and P<0.05). The predictive threshold values for severe HIE using the biochemical markers S100B, NSE, and lactate were 1.87 μg/L, 19 μg/L, and 4.6 mmol/L respectively.The sensitivity of prediction were 78%, 68%, and 75% respectively; while the specificity were 66%, 71%, and 67%, and all area under the curve(AUC)was greater than 0.5.The sensitivity of the combined prediction by the three factors was 87%, with a specificity of 79% and AUC 0.86( P<0.05). Conclusion:S100B, NSE and serum lactate are independent risk factors for predicting neonatal serve HIE, and the combination of the three indicators can improve the predictive efficiency.

Objective:To investigate the lymphocyte subsets and clinical characteristics of children with abnormal reaction to Bacillus Calmette-Guérin(BCG)vaccination.Methods:A total of 35 children with BCG disease diagnosed in the Children′s Hospital Affiliated to Xi′an Jiaotong University from January 2013 to December 2019 were enrolled retrospectively.Patients with strong local reaction and lymphadenitis after vaccine injection were selected as the localized group, and with lymphadenitis complicated with distant organ involvement were classified as the disseminated group.The differences in clinical infection indicators, demographic data, lymphocyte subsets and prognosis between the two groups were compared.Results:There are 25 cases in the localized group and 10 cases in the disseminated group, male 20 cases and female 15 cases.Compared with the localized group, the incidence of cough, fever and growth retardation all increased in the disseminated group, with statistical significance(all P<0.05). Lymphocyte ratio[(61.14±18.61)% vs.(39.64±31.45)%], T lymphocytes [CD3 + (×10 6/L): (1 821±487)vs.(1 065±539)], helper/inducible T lymphocytes[CD3 + CD4 + (×10 6/L): (1 058±357)vs.(445±140)], double positive T lymphocytes[CD3 + CD4 + CD8 + (×10 6/L): (24.07±7.17)vs.(14.10±8.89)], CD4 + /CD8 + ratio[CD4 + /CD8 + (%): (1.65±0.73)vs.(1.00±0.25)], natural killer cells[CD16 + CD56 + (×10 6/L): (19.70±2.34)vs.(12.76±7.01)]were lower in the disseminated group than those in the localized group and the differences were significant(all P<0.05). In the disseminated group, 6 cases were diagnosed with immunodeficiency disease and 7 cases died during the follow-up period.All the children in the localized group were cured. Conclusion:Most BCG reaction have a good prognosis, while disseminated children combined with primary immune deficiency have worst prognosis.Early lymphocyte subsets analysis is effective for BCG disease screening.

Objective:To investigate the relationship between metabolic syndrome (MS) and the risk of breast cancer in Chinese females.Methods:From May 2006 to December 2015, based on the Kailuan Women′s Dynamic Cohort,a total of 25 618 female employees and retirees of the Kailuan Group were included and followed. Questionnaire surveys, physical measurements and laboratory tests were used to collect baseline sociodemographic characteristics, height, weight, blood glucose, blood lipids, blood pressure, tumor incidence and outcome information. Cox proportional hazards regression models were used to analyze the relationship between MS and its components (body mass index, blood pressure, blood glucose and blood lipid) and the risk of breast cancer in females.Results:The age of 25 618 women was (47.65±12.02) years old and median follow-up time was 8.78 years; 235 new cases of breast cancer were detected, and the incidence density was 113.19/100 000 person-years. After adjusting for age, education, income, smoking status, drinking status and other factors, people who were overweight or obese had a higher risk of breast cancer, with HR (95% CI) about 1.47 (1.12-1.93), than those with normal body mass index. Compared with those without MS abnormal components, women with two MS abnormal components had an increased risk of breast cancer ( HR=1.70, 95% CI: 1.16-2.50). With the increase of the number of MS abnormal components, the risk of breast cancer increased gradually ( Ptrend value<0.05). Conclusion:Overweight/obesity and the number of abnormal components of MS can increase the risk of breast cancer in women.

Objective:To investigate the relationship between metabolic syndrome (MS) and the risk of breast cancer in Chinese females.Methods:From May 2006 to December 2015, based on the Kailuan Women′s Dynamic Cohort,a total of 25 618 female employees and retirees of the Kailuan Group were included and followed. Questionnaire surveys, physical measurements and laboratory tests were used to collect baseline sociodemographic characteristics, height, weight, blood glucose, blood lipids, blood pressure, tumor incidence and outcome information. Cox proportional hazards regression models were used to analyze the relationship between MS and its components (body mass index, blood pressure, blood glucose and blood lipid) and the risk of breast cancer in females.Results:The age of 25 618 women was (47.65±12.02) years old and median follow-up time was 8.78 years; 235 new cases of breast cancer were detected, and the incidence density was 113.19/100 000 person-years. After adjusting for age, education, income, smoking status, drinking status and other factors, people who were overweight or obese had a higher risk of breast cancer, with HR (95% CI) about 1.47 (1.12-1.93), than those with normal body mass index. Compared with those without MS abnormal components, women with two MS abnormal components had an increased risk of breast cancer ( HR=1.70, 95% CI: 1.16-2.50). With the increase of the number of MS abnormal components, the risk of breast cancer increased gradually ( Ptrend value<0.05). Conclusion:Overweight/obesity and the number of abnormal components of MS can increase the risk of breast cancer in women.