The impact of universal hepatitis B vaccine on the trend of liver cancer from the Global Burden of Disease Study 2017

2021 ◽  
Author(s):  
Chenxi Li ◽  
Wen‐Qiang He
BMJ Open ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. e053805
Author(s):  
Yi Sun ◽  
Aiming Chen ◽  
Minjie Zou ◽  
Yichi Zhang ◽  
Ling Jin ◽  
...  

ObjectiveTo estimate global prevalence of blindness and vision loss caused by glaucoma, and to evaluate the impact of socioeconomic factors on it.DesignA population-based observational study.SettingThe prevalence of blindness and vision loss due to glaucoma were obtained from the Global Burden of Disease Study 2017 database. The Human Development Index (HDI), inequality-adjusted HDI and other socioeconomic data were acquired from international open databases.Main outcome measuresThe prevalence of blindness and vision loss due to glaucoma by age, gender, subregion and Socio-Demographic Index (SDI) levels. Multiple linear regression analysis was performed to explore the associations between the prevalence and socioeconomic indicators.ResultsThe overall age-standardised prevalence of blindness and vision loss due to glaucoma worldwide was 81.5 per 100 000 in 1990 and 75.6 per 100 000 in 2017. In 2017, men had a higher age-standardised prevalence than women (6.07% vs 5.42%), and the worldwide prevalence increased with age, from 0.5 per 100 000 in the 45–49 year age group to 112.9 per 100 000 among those 70+. Eastern Mediterranean and African regions had the highest prevalence during the whole period, while the Americas region had the lowest prevalence. The prevalence was highest in low-SDI and low-income regions while lowest in high-SDI and high-income regions over the past 27 years. Multiple linear regression showed cataract surgery rate (β=−0.01, p=0.009), refractive error prevalence (β=−0.03, p=0.024) and expected years of schooling (β= -8.33, p=0.035) were associated with lower prevalence, while gross national income per capita (β=0.002, p<0.001) was associated with higher prevalence.ConclusionsLower socioeconomic levels and worse access to eyecare services are associated with higher prevalence of glaucoma-related blindness and vision loss. These findings provide evidence for policy-makers that investments in these areas may reduce the burden of the leading cause of irreversible blindness.


Liver Cancer ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 563-582 ◽  
Author(s):  
Longfei Lin ◽  
Lei Yan ◽  
Yuling Liu ◽  
Changhai Qu ◽  
Jian Ni ◽  
...  

Background: Liver cancer is one of the leading causes of cancer-related deaths worldwide. The primary causes of liver cancer include hepatitis B virus (HBV), hepatitis C virus (HCV), alcohol consumption, nonalcoholic fatty liver disease, and other factors. Aims: The objective of this study was to evaluate the global and sex-, age-, region-, country-, and etiology-related liver cancer burden, as well as the trends in liver cancer caused by different etiologies. Methods: The causes of liver cancer from 1990 to 2017, including global, regional, and national liver cancer incidence, mortality, and etiology, were collected from the Global Burden of Disease study 2017, and the time-dependent change in the trends of liver cancer burden was evaluated by annual percentage change. Results: The global liver cancer incidence and mortality have been increasing. There were 950,000 newly-diagnosed liver cancer cases and over 800,000 deaths in 2017, which is more than twice the numbers recorded in 1990. HBV and HCV are the major causes of liver cancer. HBV is the major risk factor of liver cancer in Asia, while HCV and alcohol abuse are the major risk factors in the high sociodemographic index and high human development index regions. The mean onset age and incidence of liver cancer with different etiologies have gradually increased in the past 30 years. Conclusions: The global incidence is still rising and the causes have national, regional, or population specificities. More targeted prevention strategies must be developed for the different etiologic types in order to reduce liver cancer burden.


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