Objective To analyze the current situation and the trend of the death due to foreign body in airway in children less than 5 years old in China from 1990 to 2017. Methods Using the mortality data of foreign body in airway in China from 1990 to 2017 from the Global Disease Burden 2017 (data covered 31 provinces, autonomous regions, municipalities, as well as Hong Kong and Macau Special Administrative Regions, excluding Taiwan Province) to describe the death status of children under 5 years old due to foreign body in airway in China, and to calculate the relative change and 95% uncertainty interval ( UI ) of mortality rate and proportion of children under 5 years old due to foreign body in airway between 1990 and 2017. The robust linear regression was performed with the first?order lag of mortality, and the supremum Wald test was used to explore whether the mortality trend had obvious structural changes around a certain time point. Results In 2017, the mortality rate of children under 5 years old due to foreign body in airway in China was 8.57/100 000 (95%UI : 7.41/100 000-9.57/100 000), and there was no significant difference between boys (9.05/100 000, 95%UI : 6.82/100 000-10.23/100 000) and girls (8.02/100 000, 95%UI : 7.02/100 000-9.12/100 000). The supremum Wald test showed that there was a structural change around the year of 2005 (P<0.001) in terms of the mortality rate of foreign body in the airway among children under 5 years old, which depicted a relatively stable trend before 2005 and a significant downward trend after 2005. Compared with 1990, the mortality rate of foreign body in airway among children, boys and girls under 5 years old in 2017 decreased by 49.32% (95%UI : 37.78% - 65.41%), 41.22% (95%UI :25.68%-68.26%) and 56.91% (95%UI: 44.78%-66.70%), respectively; the mortality proportion of foreign body in airway among increased by 153.33% (95%UI : 75.99% - 204.56%), 171.05% (95%UI :48.75%-239.63%) and 137.90% (95%UI: 86.62%-198.09%), respectively; the rank of foreign body in airway in all disease increased by 6 and became the first leading cause of injury from the second. Conclusion From 1990 to 2017, the mortality rate of foreign body in airway among children, boys and girls under 5 years old in China generally showed a downward trend. Compared with 1990, the mortality proportion of foreign body in airway among these population increased by a relatively large extent in 2017.

Objective To analyze the current situation and the trend of the death due to foreign body in airway in children less than 5 years old in China from 1990 to 2017. Methods Using the mortality data of foreign body in airway in China from 1990 to 2017 from the Global Disease Burden 2017 (data covered 31 provinces, autonomous regions, municipalities, as well as Hong Kong and Macau Special Administrative Regions, excluding Taiwan Province) to describe the death status of children under 5 years old due to foreign body in airway in China, and to calculate the relative change and 95% uncertainty interval ( UI ) of mortality rate and proportion of children under 5 years old due to foreign body in airway between 1990 and 2017. The robust linear regression was performed with the first?order lag of mortality, and the supremum Wald test was used to explore whether the mortality trend had obvious structural changes around a certain time point. Results In 2017, the mortality rate of children under 5 years old due to foreign body in airway in China was 8.57/100 000 (95%UI : 7.41/100 000-9.57/100 000), and there was no significant difference between boys (9.05/100 000, 95%UI : 6.82/100 000-10.23/100 000) and girls (8.02/100 000, 95%UI : 7.02/100 000-9.12/100 000). The supremum Wald test showed that there was a structural change around the year of 2005 (P<0.001) in terms of the mortality rate of foreign body in the airway among children under 5 years old, which depicted a relatively stable trend before 2005 and a significant downward trend after 2005. Compared with 1990, the mortality rate of foreign body in airway among children, boys and girls under 5 years old in 2017 decreased by 49.32% (95%UI : 37.78% - 65.41%), 41.22% (95%UI :25.68%-68.26%) and 56.91% (95%UI: 44.78%-66.70%), respectively; the mortality proportion of foreign body in airway among increased by 153.33% (95%UI : 75.99% - 204.56%), 171.05% (95%UI :48.75%-239.63%) and 137.90% (95%UI: 86.62%-198.09%), respectively; the rank of foreign body in airway in all disease increased by 6 and became the first leading cause of injury from the second. Conclusion From 1990 to 2017, the mortality rate of foreign body in airway among children, boys and girls under 5 years old in China generally showed a downward trend. Compared with 1990, the mortality proportion of foreign body in airway among these population increased by a relatively large extent in 2017.

Objective To describe the epidemiological characteristics of suicide death and self?harm/suicide in China from 2006 to 2016. Methods Data in this study are from the datasets of National Death Cause Surveillance from 2006 to 2016 and the National Injury Surveillance Dataset 2016. The age?standardized death rate based on the population census in 2000 was used to describe the trend of suicide over years. This study also described the epidemiological characteristics of suicide death and the demographic characteristics, suicide methods and severity of patients who sought medical help after committing suicide or self?inflicted injury in 2016. Results Age?standardized suicide mortality had been declining from 9.23/100 000 in 2006 to 5.33/100 000 in 2016 by 42.25%. Suicide mortality increased with age. In 2016, the suicide mortality in China was 7.05/100 000, and among people over 85 years old was 49.49/100 000. In 2016, the dominant two suicide methods were poisoning (39.12%) and sharp injury (25.62%). The first leading method of suicide in rural population, urban population and young people aged 10?to 17?year?old was poisoning (65.13%), sharp injury (29.90%) and fall (25.47%), respectively. As age increased, the severity of suicide/self?inflicted injury increased. The proportions of serious cases among young people aged 10?to 17?year?old and older people aged 60 years old and above who sought medical help after committing suicide or self?inflicted injury were 4.88% and 26.86%, respectively. Conclusion China's suicide mortality has been declining and special attention should be given to the suicide of old people.

Objective To describe the epidemiological characteristics of suicide death and self?harm/suicide in China from 2006 to 2016. Methods Data in this study are from the datasets of National Death Cause Surveillance from 2006 to 2016 and the National Injury Surveillance Dataset 2016. The age?standardized death rate based on the population census in 2000 was used to describe the trend of suicide over years. This study also described the epidemiological characteristics of suicide death and the demographic characteristics, suicide methods and severity of patients who sought medical help after committing suicide or self?inflicted injury in 2016. Results Age?standardized suicide mortality had been declining from 9.23/100 000 in 2006 to 5.33/100 000 in 2016 by 42.25%. Suicide mortality increased with age. In 2016, the suicide mortality in China was 7.05/100 000, and among people over 85 years old was 49.49/100 000. In 2016, the dominant two suicide methods were poisoning (39.12%) and sharp injury (25.62%). The first leading method of suicide in rural population, urban population and young people aged 10?to 17?year?old was poisoning (65.13%), sharp injury (29.90%) and fall (25.47%), respectively. As age increased, the severity of suicide/self?inflicted injury increased. The proportions of serious cases among young people aged 10?to 17?year?old and older people aged 60 years old and above who sought medical help after committing suicide or self?inflicted injury were 4.88% and 26.86%, respectively. Conclusion China's suicide mortality has been declining and special attention should be given to the suicide of old people.

Objective To investigate the effects of Candida albicans on the expression of tumor necrosis factor-α(TNF-α)and activation of the intracellular signaling molecule p38 mitogen-activated protein kinase(p38MAPK)in a human acute monocytic leukemia cell line THP-1. Methods Some THP-1 cells were divided into several groups in vitro: two C. albicans groups treated with 105 CFU/ml and 106 CFU/ml heat-killed C. albicans respectively, a lipopolysaccharide (LPS)group treated with 100 μg/L LPS, a blank control group treated with RPMI 1640 medium, two dexamethasone-inhibited groups pretreated with 40 μg/L dexamethasone for 30 minutes followed by treatment with 106 CFU/ml heat-killed C. albicans and LPS respectively. After treatment for 1, 3 and 6 hours, real-time fluorescence-based quantitative PCR was performed to measure TNF-α mRNA expression in THP-1 cells in the above groups. Enzyme-linked immunosorbent assay(ELISA)was conducted to determine the level of TNF-α protein in the supernatant of THP-1 cells treated with 106 CFU/ml heat-killed C. albicans, 100 μg/L LPS or RPMI 1640 medium(blank control group)for 24 hours. Western blot was performed to measure the protein expression of p38MAPK and phosphorylated p38MAPK in THP-1 cells after treatment with 106 CFU/ml heat-killed C. albicans or RPMI 1640 medium (blank control group)for 30 and 60 minutes. Statistical analysis was carried out by using two-way analysis of variance, one-way analysis of variance and the least significant difference(LSD)-t test. Results Significant differences were observed in the mRNA expression level of TNF-α among the C. albicans groups, LPS group and blank control group (F = 110.98, P < 0.001). The mRNA expression level of TNF-α in THP-1 cells increased over time in a time-dependent manner after C. albicans treatment, with significant differences among different time points (F = 701.680, P < 0.001). Compared with the blank control group, both 106-CFU/ml C. albicans group and LPS group showed a significant increase in TNF-α protein expression (6385.70 ± 533.99 ng/L and 3212.06 ± 353.00 ng/L vs. 147.10 ± 0.53 ng/L, P < 0.001 and 0.005, respectively). An obvious increase was observed in the expression level of phosphorylated p38MAPK protein, but no significant changes were noted in that of p38MAPK protein, in THP-1 cells treated with 106 CFU/ml C. albicans for 30 and 60 minutes compared with the blank control group. The mRNA expression level of TNF-α significantly decreased in dexamethasone-pretreated 106-CFU/ml C. albicans group and LPS group compared with those without dexamethasone pretreatment(3.77 ± 0.62 vs. 208.50 ± 10.50, 6.20 ± 1.93 vs. 161.35 ± 1.65, both P < 0.001). Conclusions Heat-killed C. albicans can induce the activation of p38MAPK in and secretion of TNF-α by human THP-1 cells, which then participate in the innate immune response against C. albicans.

As an important component of worldwide injury prevention, China has made great contribution to the development. China is serving as a model for other countries in the world, especially for developing countries, and China's experiences have great implications for them. Besides the description of the present situation and trends of China's injury prevention work and review for its development history, this paper has also introduced the existing issues and the current challenges, and informed the efforts of the staff in related field to find solutions from different aspects. All of them jointly boosted the development of global injury prevention.

Injury monitoring is an important approach for injury control and is an important part of comprehensive disease monitoring. With the development of medical digitalization, an intelligent injury monitoring system has been created in Yinzhou District, Ningbo City, Zhejiang Province using artificial intelligence techniques based on Ningbo Municipal Health Information Platform and has been applied across the district since 2019. The manual card-reporting mode has been transformed to intelligent card-reporting mode in this system, which achieves functions of epidemiological analyses of the monitoring data, early warning of high-incidence injuries, classified management of injury and quality control of report cards. Nearly 300 thousand cards have been automatically reported since the system was online available since November 2022, and the epidemiological characteristics of injury were preliminarily understood, which provide data supports to early earning and interventions of injury. The intelligent injury monitoring system greatly improves the injury monitoring efficiency and card-reporting quality, and saves a large number of manpower and material resources, which provides a powerful technical support to widespread injury monitoring.

Objective To evaluate effects of the yeast form of Sporothrix schenckii on activation of p38 mitogen-activated protein kinase (p38MAPK) and expression of interleukin-6 (IL-6) in macrophagelike THP-1 cells,which were differentiated from the human acute monocytic leukemia cell line THP-1.Methods THP-1 macrophage-like cells were divided into 3 groups to be treated with the yeast form of Sporothrix schenckii at a concentration of 2 × 106 colony-forming units (CFU)/ml (yeast form group),100 mg/L curdlan (curdlan group) and RPMI 1640 medium (blank control group) respectively.Real-time fluorescence-based quantitative PCR was performed to measure the mRNA expression of IL-6 in THP-1 macrophage-like cells in the above 3 groups after 3-and 6-hour treatment separately,and enzyme-linked immunosorbent assay (ELISA) to detect the level of IL-6 in the culture supernatant of THP-1 macrophagelike cells after 24-hour treatment.Western blot analysis was conducted to determine the protein expression of p38MAPK and phosphorylated p38MAPK (p-p38MAPK) in the above 3 groups after 30-and 60-minute treatment separately.Other THP-1 macrophage-like cells were pretreated with 100 nmol/L dexamcthasonc (a p38MAPK inhibitor) for 30 minutes,and then were divided into 3 groups to be treated with the yeast form of Sporothrix schenckii,curdlan and RPMI 1640 medium respectively,and changes in the level of pp38MAPK and mRNA expression of IL-6 were also detected.Statistical analysis was carried out with SPSS19.0 software by using one-way or multi-way analysis of variance and least significant difference (LSD) test.Results Significant differences in the mRNA expression of IL-6 in THP-1 macrophage-like cells were observed among the yeast form group,curdlan group and blank control group (F =5 552.22,P ＜0.001) after 3-hour treatment (56.81 ± 7.36,26.69 ± 1.22 and 0.97 ± 0.05,respectively) and 6-hour treatment (378.03 ± 16.67,276.24 ± 39.13 and 1.02 ± 0.04,respectively).Additionally,the yeast form group showed significantly higher mRNA expression of IL-6 after 6-hour treatment than that after 3-hour treatment (q =16.74,P ＜ 0.001).After 24-hour treatment,the level of IL-6 in the culture supernatant of THP-1 macrophage-like cells also significantly differed among the yeast form group,curdlan group and blank control group (59.96 ± 18.16 pg/L,91.01 ± 17.27 pg/L,5.50 ± 2.30 pg/L,respectively;F =26.62,P ＜ 0.01),and was significantly higher in the yeast form group than in the blank control group (P ＜ 0.01).After 30-and 60-minute treatment,the protein expression of p-p38MAPK was significantly higher in the yeast form group than in the blank control group (both P ＜ 0.01).Moreover,the mRNA expression of IL-6 (4.46 ± 1.03 vs.493.52 ± 113.87,P ＜ 0.001) and protein expression of p-p38MAPK (2.29 ± 0.37 vs.4.55 ±0.46,q =10.81,P ＜ 0.01) were both significantly lower in the yeast form group with dexamethasone pretreatment than in that without dexamethasone pretreatment.Conclusion In vitro treatment with the yeast form of Sporothrix schenckii can enhance the expression of IL-6 in human THP-1 macrophage-like cells by activating the p38MAPK signaling pathway.

OBJECTIVETo identify the mortality and epidemiological pattern of dementia and its various major subtypes among urban and rural senior residents in Beijing.

METHODSBased on Beijing's dementia prevalence survey among residents aged 55 years and above in 1997, respondents were selected by stratified multiple-stage cluster sampling and 12 urban communities and 17 rural village communities were randomly sampled then follow-up in 2001. COX regression was used to analyze relative risks controlling confounding factors on deaths of dementia cases.

RESULTSThe mortality of dement patients in the 55-64 age-group was 0.82/100 person-year. The age-standardized mortality of dement cases was 0.90/100 person-year. The mortality in the 65 and above age-group was 1.44/100 person-year, and the age-standardized mortality was 1.56/100 person-year. Among AD cases, the above two mortalities were 0.35/100 and 0.42/100 person-year respectively, and among VaD cases, 0.34/100 and 0.36/100 person-year respectively. For both AD and VaD cases, their mortality increased with age. Region, gender and age were more significant to survival of AD cases.

CONCLUSIONOne major subtype of dementia, AD, among elderly urban and rural residents in Beijing, has a different mortality and epidemiological pattern from VaD.

Aged ; Aged, 80 and over ; Cardiovascular Diseases ; mortality ; Cause of Death ; China ; epidemiology ; Dementia ; mortality ; Female ; Humans ; Male ; Middle Aged ; Neoplasms ; mortality ; Prevalence ; Respiratory Tract Diseases ; mortality ; Rural Population ; statistics & numerical data ; Urban Population ; statistics & numerical data

Objective: To analyze the characteristics distribution of falls among students aged 6-17 in 2018, and to provide data support for preventing falls among students and formulating the corresponding policies. Methods: Data of falls among students aged 6-17 in China in 2018 were collected from the the National Injury Surveillance System (NISS) for analyzing its demographic characteristics, injury occurrence and clinical traits of falling. Results: In total, 42 735 cases of fall aged 6-17 were collected from the NISS in China in 2018, which accounted for 54.03% of all cases, with a sex ratio of 2.34∶1, the proportion of students aged 6-11 was the highest(53.78%). The proportion of falls from March to June was the highest(42.12%), and the peak time when falls occurred was forenoon 10:00-10:59(8.40%). School and school-related area(40.40%), home(18.96%) and public residential institution (15.35%) were the sites where falls mainly occurred. The top three activities when falls occurred were leisure activities(47.41%), sports activities(23.90%) and walking(9.77%). Bruise/scrape(54.49%), sprain/strain(21.98%) and fracture(12.69%) were the major nature of injury. The most common body parts falls involved were lower limbs(34.71%), head(29.85%) and upper limbs(25.10%). The injury of falling was mainly characterized by mild ones(83.44%). Conclusion There were more cases of falls on students aged 6-17 from the NISS in China in 2018, mainly males. The epidemiological characteristics were relatively variable, so targeted prevention program of falls should be conducted.