To analyze the epidemiological characteristics of injuries deaths among children and adolescents in Shaanxi Province from 2015 to 2022 and provide insight in formulating interventions to prevent accidental deaths among children and adolescents.

Analyze the distribution of gender, age groups, and cause of death in injury deaths among children and adolescents in Shaanxi Province from 2015 to 2022. χ² test was used to compare the mortality differences between genders, age groups and years. The Joinpoint regression method was used to analyze the trend of child and adolescent mortality. Average Annual Percent Change (AAPC) was used to describe trends.

The average mortality of children and adolescents aged 5—19 in Shaanxi Province from 2015 to 2022 was 10.86/100000, with a standardized mortality of 11.01/100000, which accounted for 53.86% of the total deaths among children and adolescents. The mortality of males is 2.00 times higher than that of females (χ²=76.77, P<0.001). During the past 8 years, there was no change in injuries mortality among children and adolescents in Shaanxi Province AAPC (95%CI) -4.21% (-11.06%— -2.66%) (P>0.05). The top two causes of death in injuries among children and adolescents are road injuries and drowning, which accounted for 57.87% of the total deaths among children and adolescents. The average annual death rate of road traffic accidents in the general population and men in 2015—2019 was higher than that in 2020-2022 (P<0.05). The average annual death rate from falls in the general population and women was lower in 2015—2019 than in 2020—2022 (P<0.05). The mortality of injuries increased with age groups, with the highest in 15—19 age group (χ²=21.12, P<0.001). The road traffic accident and suicide death rates were the highest in the 15—19 age group (P<0.05).

The main causes of death in injuries among children and adolescents aged 5—19 in Shanxi Province from 2015 to 2022 are road injuries and drowning. The mortality in injuries is higher in male than female. Targeted prevention and control measures should be taken based on the characteristics of mortality in injuries among children and adolescents in Shaanxi Province.

To understand the current situation and influencing factors of the demand for children under three in Chongqing, and to provide a reference for improving the children nursery service system of children under three.

A multi-stage stratified random sampling survey was conducted on the children nursery need of children under three in Chongqing, and the multi-categorical logistic regression was used to comprehensively analyze the influencing factors of children nursery need.

A total of 11 727 families with children under three were surveyed, and the demand for childcare was 53.4%，the age of those who had been enrolled in childcare was mainly at the age of 24-36 months, and the average monthly childcare cost was 2 351.8 yuan, mainly in private childcare institutions. The childcare expectation of families without childcare demand was concentrated in 24-36 months, and the average acceptable monthly childcare cost was 1 607.4 yuan, favoring public childcare institutions. The results of multi-categorical regression analysis showed that parental status (father OR=0.594, 95%CI:0.522-0.676), age (OR=1.012, 95%CI:1.002-1.021), urban and rural (urban OR=1.670, 95%CI:1.490-1.871), education level (university degree or below OR=0.682, 95%CI:0.499-0.931), occupation (government agencies or institutions OR=0.814, 95%CI:0.665-0.996), per capita monthly household income (<4 000 yuan OR=0.857, 95%CI:0.737-0.995), number of families living together (OR=0.915, 95%CI:0.874-0.957), 0-3 years old children (<24 months old OR=0.806, 95%CI:0.714-0.908) were important influencing factors for the childcare needs of children under three.

Chongqing’s childcare needs have not been met, and families should be called upon to optimize the division of responsibilities between parents in childcare. The government should strengthen the training of grandparents in caring skills, improve the ability of family care, increase the supply of inclusive childcare services through multiple channels and reduce the cost of childcare.

To analyze the myopia of middle school students in Heilongjiang Province in 2022, and to provide scientific basis for the development of myopia prevention strategies and measures.

99 114 middle school students in Heilongjiang Province in 2022 were selected to carry out a special survey on health risk behaviors. Their visual acuity and diopter were examined by using a 5-meter standard logarithmic visual acuity chart and desktop optometer. Binary Logistic regression was used to analyze the factors affecting myopia of students.

The total myopia rate of middle school students was 72.44%, including 70.50% junior high school students, 76.91% senior high school students and 64.47% vocational high school students. The myopia rate of students in urban area was higher than that in suburban county. The myopia rate of girls was higher than that of boys. Binary logistic regression analysis showed that: female students (OR=1.38, 95%CI: 1.35-1.43), frequently or always switching seats(OR=1.20, 95%CI: 1.15-1.25), spending more than 2 hours reading and writing after school every day(OR=1.11, 95%CI: 1.07-1.14), spending more than 2 hours a week attending cultural tutoring classes(OR=1.07, 95%CI: 1.03-1.11), parents often or always reminding them to pay attention to their reading and writing posture(OR=1.14, 95%CI: 1.10-1.19), and spending more time using the computer every day(h)≥ 2(OR =1.19, 95%CI: 1.24-1.45), using of mobile electronic devices in the past week(OR=1.11, 95%CI: 1.06-1.16), how often close range eye rest occurs(h)≥ 1(OR=1.11, 95%CI: 1.08-1.15), average daily indoor sitting time(h)≥ 8(OR=1.15, 95%CI: 1.12-1.19) are risk factors for myopia; Suburban counties(OR=0.95, 95%CI: 0.92-0.98), frequently adjusting the height of desks and chairs according to one’s own height(OR=0.94, 95%CI: 0.91-0.97), engaging in outdoor activities during breaks(OR=0.91, 95%CI: 0.89-0.94), having eyes more than 33 cm away from books while reading and writing(OR=0.84, 95%CI: 0.81-0.88), watching TV for≥2(OR=0.84, 95%CI: 0.80-0.88), and having outdoor activity time during the day(h)≥ 2(OR=0.93, 95%CI: 0.90-0.97), average daily sleep time(h)≥ 8(OR =0.80, 95%CI: 0.78-0.83) are protective factors for myopia.

Myopia is related to various factors such as residential area, gender, lifestyle, and behavioral habits.

To explore the status and influencing factors of latent tuberculosis infection among high school students in Chongqing, and to provide technical support for the prevention and control of tuberculosis in schools in Chongqing.

Stratified cluster sampling method was used to select the students of the first and second years of high school in Chongqing in 2023, as the study subjects to detect latent tuberculosis infection with recombinant Mycobacterium tuberculosis fusion protein skin test, to collect the information related to latent tuberculosis infection, and to analyse the influencing factors using Logistic regression model.

A total of 9161 students in the first and second years of high school in Chongqing were included, and 543 latent tuberculosis infections were detected, with a latent tuberculosis infection rate of 5.93%. Multifactorial logistic regression analysis showed that history of previous tuberculosis (OR:4.244, 95%CI:2.239-8.044), history of close contact with tuberculosis (OR:2.096, 95%CI:1.123-3.914), smoking (OR:6.819, 95%CI:3.562-13.053), and staying up late (OR:1.665, 95%CI:1.154-2.402) were risk factors for latent tuberculosis infection in students.

The rate of latent tuberculosis infection among students in the first and second years of high school in Chongqing is low. Not smoking, not staying up late, avoiding close contact with tuberculosis patients, taking good personal protective measures, strengthening physical exercise, and improving immunity can reduce the risk of students being infected with Mycobacterium tuberculosis.

To investigate the current distribution status and multimorbidity patterns of chronic diseases among the elderly population in China, and provide reference for formulating chronic disease management measures.

Based on the CHARLS database in 2020, a total of 10,635 elderly individuals aged 60 and above were included to investigate the prevalence trends of 15 common chronic diseases. The actual expected ratio (O/E) and agglomerative hierarchical clustering analysis were employed to explore the patterns of comorbidity.

The prevalence of chronic diseases among elderly people in China was 86.39%, with hypertension (48.49%), arthritis (43.12%), and stomach diseases (excluding tumors or cancer) (32.06%) being the main causes. The multimorbidity rate was 66.30%, and the top three coexisting diseases were "hypertension+arthritis" (22.28%, O/E=1.07), "hypertension+dyslipidemia" (20.25%, O/E=1.44), and "stomach disease+arthritis" (18.65%, O/E=1.35). The top three coexisting diseases were "hypertension+arthritis+dyslipidemia" (10.31%, O/E=1.70), "hypertension + dyslipidemia + heart disease" (9.70%, O/E=2.65), and "arthritis + stomach disease + hypertension" (9.49%, O/E=1.42). Agglomeration hierarchical cluster analysis was divided into clusters according to malignant tumors, emotional and mental diseases, " stroke + memory related diseases + Parkinson’s disease", "dyslipidemia + diabetes + hypertension + heart disease", "chronic lung disease + asthma + stomach disease + arthritis + liver disease +kidney disease", forming a multimorbidity model.

The overall prevalence of chronic diseases among elderly people in China is increasing year by year, and there is a clustering trend.

To master the information of patients with convulsion epilepsy in phenobarbital in rural epilepsy prevention and management project of Heilongjiang Province, understand the reasons for the withdrawal, analyze the influencing factors, and provide reference for improving the patient retention rate and work quality.

From 2011 to 2020, 3 890 convulsion epilepsy patients received phenobarbital treatment in Heilongjiang Province, of which 807 patients were enrolled. For 807 patients, EpiData, EXCEL and SPSS 19.0 software were used for data entry, processing and statistical analysis of the influencing factors in the withdrawal group, including analysis of variance, univariate analysis, and multivariate survival analysis.

3 890 patients with convulsive epilepsy enrolled in phenobarbital treatment group in rural epilepsy project of Heilongjiang Province, 807 cases dropped out successively, the dropout rate was 20.75%, the primary factors contributing to dropout were relocation, noncompliance with medication, and self-perceived or actual remission. Multivariate Cox regression analysis showed that female patients (HR=1.278, 95%CI:1.112-1.468) were the risk factors for dropping out, and the probability of dropping out in female patients was 1.278 times that of male patients.

The withdrawal rate of phenobarbital epilepsy treatment in rural areas of Heilongjiang Province is relatively high. In the later management work, the publicity and education of epilepsy prevention and treatment knowledge should be strengthened to provide personalized treatment programs and improve the treatment efficiency, especially for female epilepsy patients.

To investigate the current status of fertility intentions among married women of childbearing age in Hebei Province under the background of the three-child policy, and to analyze the influencing factors of fertility support on married women of childbearing age’s fertility intention.

A random cluster sampling method was used to select married women of childbearing age in Hebei Province as the respondents in July 2023, and a self-designed questionnaire was used for the survey. Multinomial logistic regression was used to analyze the influencing factors of fertility intentions among married women of childbearing age.

A total of 1 200 questionnaires were distributed and 1104 valid questionnaires were collected, with a valid recovery rate of 92%. Among the survey subjects, 222 people (20.1%) had no intention of fertility/re-fertility, 263 people (23.8%) intended to have 1 child, 545 people (49.4%) intended to have 2 children, and 74 people (6.7%) intended to have 3 children or more. The results of multinomial logistic regression analysis showed that age, ethnicity, occupation, and residence area were influencing factors of fertility intentions. In terms of fertility support, time support, monthly childcare expenses, maternal care, and economic support were influencing factors of fertility intentions among married women of childbearing age.

The fertility intentions of married women of childbearing age are relatively low, and the intention of having three children is still at a low level. Actively providing fertility support and policies that encourage the fertility intentions of married women of childbearing age, and creating a good fertility environment, will help to enhance the fertility intentions of married women of childbearing age.

To understand the status quo of infectious disease reports automatically exchanged by secondary and above medical institutions in Sichuan province based on regional platform, and provide basis for improving the work on automatic exchange of infectious disease information reports in the next step.

Check and calculate the success rates of exchange and rough exchange through the system, the use of the infectious disease reporting management related systems was investigated by questionnaire survey. T-test and chi-square test were used for comparison between groups, and spearman correlation analysis was used for correlation.

From July to September 2023, the exchange success rate in 68 medical institutions was 92.67%, and the success rate of crude exchange reached 95.87%. Compared with other level medical institutions, municipal medical institutions had higher success rate of exchange and crude exchange, and longer time interval to realize automatic exchange. The exchange success rate was positively correlated with the time interval to realize automatic exchange (r=0.44, P<0.001) and the crude exchange success rate (r=0.51, P<0.001). More than 90% of the institutions had HIS, LIS, PACS. 77.94% of the institutions could automatically generate the report card, more than 80% had the report card management and information statistics query functions. 73.53% realized the automatic early warning of infectious disease report card, and 25% of the institutions reported the card forcibly after the early warning. 88.24% felt that the workload of infectious disease report was reduced after automatic exchange.

The success rate of automatic exchange and the success rate of crude exchange in medical institutions were higher overall, municipal medical institutions were higher than other levels of medical institutions. The construction rate of basic information system in medical institutions was high, but the basic functions of automatic exchange were not perfect. Automatic exchange improves the efficiency of reporting to some extent, but it still could not completely replace manual reporting.

To investigate the influence of social support, self-efficacy and coping style on job burnout of telecommunication employees, and to provide practical guidance for reducing job burnout of telecommunication employees.

This study used stratified random sampling to conduct a questionnaire survey among 8073 telecommunication employees, using Social Support Scale, Coping Style Scale, General Self-Efficacy Scale and Job Burnout Scale. Pearson correlation analysis and SPSS PROCESS model 6 were used to construct a chain mediating effect model to study the mediating path of social support on job burnout of telecommunication employees.

Self-efficacy and coping style had a significant mediating effect on social support and job burnout, and the effect sizes were -0.072 (95%CI: -0.08--0.608) and -0.204 (95%CI: -0.221--0.189), respectively. Self-efficacy and coping style played a significant chain mediating role in the effect of social support on job burnout of telecommunication employees, and the effect size was -0.034 (95%CI: -0.039 - -0.029).

Social support, self-efficacy and coping style are important factors affecting job burnout of telecommunication employees. Self-efficacy and coping style play a chain mediating role between social support and job burnout. The results of this study suggest that increasing social support for telecommunication employees, promoting them to form positive coping styles and improving their self-efficacy are important ways to alleviate their job burnout.