Guanyang Zou

Prof. Guanyang Zou


Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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YWYuxin Wang
Yuxin Wang
MLMingqiang Li
Mingqiang Li
WGWenfeng Guo
Wenfeng Guo
CDChang-Sheng Deng
Chang-Sheng Deng
GZGuanyang Zou
Guanyang Zou
JSJian-ping Song
Jian-ping Song
Background: Malaria is a parasitic infection transmitted by mosquito vectors, commonly found in tropical regions, and characterized by high morbidity and mortality. It causes a heavy disease burden in Sao Tome and Principe (STP), an island country in West Africa which at one time had a high incidence of malaria. Objective: This study aims to analyze the trend of disease burden of malaria in STP. Methods: The crude and age-standardized incidence, mortality, and disability-adjusted life years (DALYs) rate data of malaria were extracted from GBD 2019. Joinpoint 4.9 software was used to calculate the annual percentage change (APC) and the average annual percentage change (AAPC), which were also used to indicate the change in disease burden by different stages. Results: In general, the age-standardized incidence rate (ASIR), age-standardized mortality rate (ASMR), and age-standardized DALYs rate (ASDR) of malaria presented a decreasing trend between 1990 and 2019, with an average annual decrease of 5.6%, 6.2%, and 10.7%, respectively, in STP. Specifically, all indicators first presented an increasing trend from 1990 to about 2000, followed by a decreasing trend until 2019, although the incidence rebounded slightly after 2015. Overall, the ASIR, ASMR, and ASDR of malaria reduced by 77.08%, 87.84%, and 82.21%, respectively, in 2019 as compared to 1990. No significant differences in disease burden were found between males and females between 2005 and 2019. Children who were under 5 years old showed a relatively small decrease in the rate of DALYs as compared to other age groups, but remained the group with the highest disease burden of malaria in the country. Conclusions: The disease burden of malaria in STP showed a significant decrease between 1990 and 2019, but it will still be challenging to achieve the goal of eliminating malaria by 2025. The government and relevant authorities should aim to strengthen the prevention and surveillance of malaria and tailor population-specific interventions in order to reduce the disease burden of malaria in STP.

Verified
Journal Article
Open access
PDF file
SZSheng Zhou
Sheng Zhou
LYLinxin Yu
Linxin Yu
JLJianming Liang
Jianming Liang
WXWei Xie
Wei Xie
GLGuoming Li
Guoming Li
YCYinhuan Chen
Yinhuan Chen
Background: Recent setbacks in malaria control in Comoros demand a reassessment of its evolving epidemiology. Methods: Using the Global Burden of Disease (GBD) Study 2021 data, we analyzed malaria trends from 2010 to 2021, stratified by sex. We quantified the contributions of demographic and epidemiological factors to these trends and identified risk factors for malaria-related disability-adjusted life years (DALYs). Results: From 2010 to 2021, malaria cases, deaths, and DALYs in Comoros fell by −90.22%, −94.44%, and −94.88%; and the corresponding age-standardized rates declined with EAPCs of −18.70% (95% CI: −33.77 to −0.20), −23.89% (95% CI: −36.58 to −8.66), and −24.49% (95% CI: −36.88 to −9.66), with steeper declines in males. Nevertheless, all indicators increased in 2018 and again in 2021. In sub-Saharan Africa, only cases increased, while other metrics declined slightly. In Comoros, incidence shifted mainly to adults ≥25 years, unlike sub-Saharan Africa, where children < 5 years were most affected. Population growth drove increases in cases, deaths and DALYs, whereas epidemiological shifts had the opposite effect. Child underweight was the leading risk factor for malaria DALYs. Conclusions: Existing interventions can achieve malaria control in Comoros; however, rebounds in 2018 and 2021 highlight the need to identify and address drivers of resurgence.

30 March 2023 in The Lancet
Verified
Journal Article
Closed access
DFDaqi (Reinhardt) Fang
Daqi (Reinhardt) Fang
GZGuanyang Zou
Guanyang Zou

15 April 2025 in World Journal of Diabetes
Verified
Journal Article
Open access
WXWen-Hui Xiao
Wen-Hui Xiao
XYXiao-Cong Yang
Xiao-Cong Yang
SXSi-Jie Xu
Si-Jie Xu
YBYing Bian
Ying Bian
GZGuanyang Zou
Guanyang Zou
BACKGROUND Diabetes mellitus (DM) is a rapidly growing global health emergency of the 21st century. Comorbidities, such as DM and depression, are common, presenting challenges to the healthcare system. AIM To investigate the prevalence of depression and its associated factors in patients with DM and to strengthen the management of depression in this patient group. METHODS Participants were selected from the 2018 China Health and Retirement Longitudinal Study. Depressive symptoms were assessed using the 10-item Center for Epidemiological Studies Depression Scale, with a score of 10 or more indicating depression. Group differences were compared using analysis of variance and χ 2 tests. Binary logistic regression was conducted to explore the odds ratios (ORs) of independent variables. Following Andersen’s behavioral model, predisposing, enabling, health need, and health behavior variables were introduced stepwise into the logistic model. RESULTS Of the 1673 patients with diabetes, 41.4% had depressive symptoms. Regarding the predisposing characteristics, patients who were male (OR 0.426, P < 0.05), married (OR 0.634, P < 0.05), and received a high school education or higher (OR 0.432, P < 0.05) reported fewer depressive symptoms. Healthcare needs, including better self-rated health (OR 0.458 for fair and OR 0.247 for good, P < 0.05) and more sleep (OR 0.642, P < 0.05), were associated with a lower likelihood of depressive symptoms. In contrast, pain (OR 1.440 for mild and OR 2.644 for severe, P < 0.05) and impairment in the basic activities of daily living (OR 1.886, P < 0.05) were inversely associated. Additionally, patients highly satisfied with healthcare services (OR 0.579, P < 0.05) were less likely to have depressive symptoms. CONCLUSION Nearly half of the patients with DM reported depressive symptoms, which were strongly associated with predisposing characteristics and healthcare needs, particularly physical pain and impairment in basic activities of daily living. Our study emphasizes the significance of enhanced screening and intervention for depression in diabetes care along with improved management of functional impairments.