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Global burden and trends of sexually transmitted infections from 1990 to 2019: an observational trend study - 24/03/22

Doi : 10.1016/S1473-3099(21)00448-5 
Yang Zheng, MD a, b, , Qi Yu, MS c, , Yushi Lin, MS a, , Yuqing Zhou, MD a, Lei Lan, MS a, Shigui Yang, ProfPhD a, Jie Wu, PhD a,
a State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China 
b Department of General Practice, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China 
c Department of Cardiology and Endodontics, The Stomatology Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China 

* Correspondence to: Dr Jie Wu, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Centre for Infectious Diseases, Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310003, China State Key Laboratory for Diagnosis and Treatment of Infectious Diseases National Clinical Research Centre for Infectious Diseases Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases The First Affiliated Hospital School of Medicine Zhejiang University Hangzhou Zhejiang 310003 China

Summary

Background

Sexually transmitted infections (STIs) are a major public health issue worldwide, but there is a paucity of literature on their burden and trends globally. We aimed to assess the global disease burden and trends of STIs from 1990 to 2019.

Methods

In this observational trend study, we collected data on incident cases, age-standardised incidence rate, and disability-adjusted life-years (DALYs), and calculated age-standardised DALY rates, for five STIs (syphilis, chlamydia, gonorrhoea, trichomonas, and genital herpes) between 1990 and 2019, by sex, geographical region, and cause using data exclusively from the Global Burden of Disease study 2019. The estimated annual percentage changes in the age-standardised incidence rate and age-standardised DALY rate were calculated to quantify the changing trend.

Findings

Globally, the age-standardised incidence rate of STIs showed a decreasing trend with an estimated annual percentage change of −0·04 (95% uncertainty interval [UI] −0·08 to 0·00) from 1990 to 2019, reaching 9535·71 per 100 000 person-years (8169·73 to 11 054·76) in 2019. The age-standardised DALY rate showed a decreasing trend with an estimated annual percentage change of −0·92 (−1·01 to −0·84) and reached 22·74 per 100 000 person-years (14·37 to 37·11) in 2019. The sub-Saharan African region had the highest age-standardised incidence rate (19 973·12 per 100 000 person-years, 17 382·69 to 23 001·57) and age-standardised DALY rate (389·32 per 100 000 person-years, 154·27 to 769·74). Adolescents had the highest incidence rate (18 377·82 per 100 000 person-years, 14 040·38 to 23 443·31) and showed stable total STI trends, except for an upward trend of syphilis between 2010 (347·65 per 100 000 person-years, 203·58 to 590·69) and 2019 (423·16 per 100 000 person-years, 235·70 to 659·01). Male individuals had a higher age-standardised incidence rate (10 471·63 per 100 000 person-years, 8892·20 to 12 176·10) than female individuals (8602·40 per 100 000 person-years, 7358·00 to 10001·18), whereas female individuals had a higher age-standardised DALY rate (33·31 per 100 000 person-years, 21·05 to 55·25) than male individuals (12·11 per 100 000 person-years, 7·63 to 18·93).

Interpretation

Although most countries showed a decrease in age-standardised rates of incidence and DALYs for STIs, the absolute incident cases and DALYs increased from 1990 to 2019. Therefore, STIs still represent a global public health challenge, especially in sub-Saharan Africa and Latin America, which warrants more attention and health prevention service.

Funding

Mega-Project of National Science and Technology for the 13th Five-Year Plan of China and the National Natural Science Foundation of China.

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P. 541-551 - avril 2022 Retour au numéro
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