5.Association between temperature and mortality: a multi-city time series study in Sichuan Basin, southwest China.
Yizhang XIA ; Chunli SHI ; Yang LI ; Shijuan RUAN ; Xianyan JIANG ; Wei HUANG ; Yu CHEN ; Xufang GAO ; Rong XUE ; Mingjiang LI ; Hongying SUN ; Xiaojuan PENG ; Renqiang XIANG ; Jianyu CHEN ; Li ZHANG
Environmental Health and Preventive Medicine 2024;29():1-1
BACKGROUND:
There are few multi-city studies on the association between temperature and mortality in basin climates. This study was based on the Sichuan Basin in southwest China to assess the association of basin temperature with non-accidental mortality in the population and with the temperature-related mortality burden.
METHODS:
Daily mortality data, meteorological and air pollution data were collected for four cities in the Sichuan Basin of southwest China. We used a two-stage time-series analysis to quantify the association between temperature and non-accidental mortality in each city, and a multivariate meta-analysis was performed to obtain the overall cumulative risk. The attributable fractions (AFs) were calculated to access the mortality burden attributable to non-optimal temperature. Additionally, we performed a stratified analyses by gender, age group, education level, and marital status.
RESULTS:
A total of 751,930 non-accidental deaths were collected in our study. Overall, 10.16% of non-accidental deaths could be attributed to non-optimal temperatures. A majority of temperature-related non-accidental deaths were caused by low temperature, accounting for 9.10% (95% eCI: 5.50%, 12.19%), and heat effects accounted for only 1.06% (95% eCI: 0.76%, 1.33%). The mortality burden attributable to non-optimal temperatures was higher among those under 65 years old, females, those with a low education level, and those with an alternative marriage status.
CONCLUSIONS
Our study suggested that a significant association between non-optimal temperature and non-accidental mortality. Those under 65 years old, females, and those with a low educational level or alternative marriage status had the highest attributable burden.
Female
;
Humans
;
China/epidemiology*
;
Cities
;
Cold Temperature
;
Hot Temperature
;
Mortality
;
Temperature
;
Time Factors
;
Middle Aged
;
Male
6.Estimation of the population, death, and quality of life in Shaanxi Province, western China: a cross-sectional study.
Xinlei MIAO ; Jun CHEN ; Qiong WU ; Wen MENG ; Lin REN ; Zhiyuan WU ; Xiuhua GUO ; Xiang ZHANG ; Qun MENG
Chinese Medical Journal 2023;136(15):1832-1838
BACKGROUND:
Measuring the health of the population is of great significance to the development of a region. We aimed to estimate the population, probability of death, and quality of life in western China.
METHODS:
We calculated the age-specific mortality rate and prevalence rate of diseases and injuries using the Full Population Database and the Home Page of Inpatient Medical Record. We used multiple interpolation methods to insert missing information from the death data and the model of Kannisto to adjust the mortality rate for elderly individuals. The age-specific prevalence rate of diseases and injuries was adjusted according to the standard ratio of age and methods of equal proportional allocation. Life expectancy was calculated by a life table, and the quality of life was estimated using the Sullivan method.
RESULTS:
The total population continued to increase in 2015 to 2019 in the Shaanxi Province, China. The mortality rate of children under five has improved, and the mortality rate of people over 65 is decreasing year by year. Life expectancy increased from 74.66 years in 2015 to 77.19 years in 2019. Even with the total risk of disease and injury, the health-adjusted life expectancy increased by 1.90 years within 5 years, and the number of unhealthy years significantly improved. Health-adjusted life expectancy increased by 1.75 years when only considered the ten major disease systems (tumors; endocrinology, nutrition and metabolism; mental and behavioral disorders; nervous system; sensory diseases; circulatory system; respiratory system; digestive system; genitourinary system; musculoskeletal system and connective tissue), and the number of unhealthy years increased slightly.
CONCLUSIONS
In the past five years, Shaanxi Province has made progress in improving life expectancy and controlling the development of chronic diseases. It is necessary to take specific preventive measures and improve the quality of basic public health services.
Child
;
Humans
;
Aged
;
Cross-Sectional Studies
;
Quality of Life
;
Life Expectancy
;
China/epidemiology*
;
Prevalence
8.Burden of multiple myeloma in China: an analysis of the Global Burden of Disease, Injuries, and Risk Factors Study 2019.
Jiangmei LIU ; Weiping LIU ; Lan MI ; Cai CAI ; Tiejun GONG ; Jun MA ; Lijun WANG
Chinese Medical Journal 2023;136(23):2834-2838
BACKGROUND:
There is limited data to comprehensively evaluate the epidemiological characteristics of multiple myeloma (MM) in China; therefore, this study determined the characteristics of the disease burden of MM at national and provincial levels in China.
METHODS:
The burden of MM, including incidence, mortality, prevalence, and disability-adjusted life years (DALYs), with a 95% uncertainty interval (UI), was determined in China following the general analytical strategy used in the Global Burden of Disease, Injuries, and Risk Factors Study 2019. The trends in the burden of MM from 1990 to 2019 were also evaluated.
RESULTS:
There were an estimated 347.45 thousand DALYs with an age-standardized DALY rate of 17.05 (95% UI, 12.31-20.77) per 100,000 in 2019. The estimated number of incident case and deaths of MM were 18,793 and 13,421, with age-standardized incidence and mortality rates of 0.93 (95% UI, 0.67-1.15) and 0.67 (95% UI, 0.50-0.82) per 100,000, respectively. The age-specific DALY rates per 100,000 increased to more than 10.00 in the 40 to 44 years age group reaching a peak (93.82) in the 70 to 74 years age group. Males had a higher burden than females, with approximately 1.5- to 2.0-fold sex difference in age-specific DALY rates in all age groups. From 1990 to 2019, the DALYs of MM increased 134%, from 148,479 in 1990 to 347,453 in 2019.
CONCLUSION
The burden of MM has doubled over the last three decades, which highlights the need to establish effective disease prevention and control strategies at both the national and provincial levels.
Humans
;
Male
;
Female
;
Adult
;
Aged
;
Global Burden of Disease
;
Quality-Adjusted Life Years
;
Multiple Myeloma/epidemiology*
;
Global Health
;
Incidence
;
Prevalence
;
Risk Factors
;
China/epidemiology*
9.Attitudes of vaccination service providers to the SARS-CoV-2 intranasal spray vaccine during the SARS-CoV-2 pandemic in China: A cross-sectional study.
Yanlin CAO ; Juan LI ; Yuan MA ; Luodan SUO ; Xiaomei LI ; Mingyu XU ; Jiang WU ; Weizhong YANG ; Luzhao FENG
Chinese Medical Journal 2023;136(18):2260-2262
10.Primary malignant bone tumors incidence, mortality, and trends in China from 2000 to 2015.
Yunfeng XI ; Liying QIAO ; Buqi NA ; Huimin LIU ; Siwei ZHANG ; Rongshou ZHENG ; Wenrui WANG ; Kexin SUN ; Wenqiang WEI ; Jie HE
Chinese Medical Journal 2023;136(17):2037-2043
BACKGROUND:
Primary malignant bone tumors are uncommon, and their epidemiological features are rarely reported. We aimed to study the incidence and death characteristics of bone tumors from 2000 to 2015.
METHODS:
Population-based cancer registries submitted registry data to National Central Cancer Registry of China (NCCRC). The data collected from 501 local cancer registries in China were assessed using NCCRC screening methods and criteria. Incidence and mortality rates of primary bone tumor were stratified by age group, gender, and area. Age-standardized incidence and mortality rates were adjusted using the Chinese standard population in 2000 and Segi's world population. The annual percentage change (APC) in rate was calculated using the Joinpoint Regression Program.
RESULTS:
Data from 368 registries met quality control criteria, of which 134 and 234 were from urban and rural areas, respectively. The data covered 309,553,499 persons. The crude incidence, age-standardized incidence, and crude mortality rates were 1.77, 1.35, and 1.31 per 100,000, respectively. Incidence and mortality rates were higher in males than those in females; they showed downward trends, with declines of 2.2% and 4.8% per year, respectively, and the rates in urban areas were lower than those in rural areas. Significant declining trends were observed in urban areas. Stable trends were seen in rural areas during 2000 to 2007, followed by downward trends. Age-specific incidence and mortality rates showed stable trends in the age group of 0 to 19 years, and downward trends in the age group elder than 19 years.
CONCLUSIONS
The incidence and mortality rates of primary malignant bone tumors in rural areas were higher compared to those in urban areas. Targeted prevention measures are required to monitor and control bone tumor incidence and improve the quality of life of affected patients. This research can provide a scientific basis for the prevention and control of bone tumors, as well as basic information for follow-up research.
Adolescent
;
Adult
;
Child
;
Child, Preschool
;
Female
;
Humans
;
Infant
;
Infant, Newborn
;
Male
;
Young Adult
;
China/epidemiology*
;
Incidence
;
Quality of Life
;
Bone Neoplasms/mortality*
;
East Asian People

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