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2024 Vol. 6, No. 9

Preplanned Studies
Combined Effect of Outdoor Time and Other Modifiable Factors on Myopia Incidence Among Children and Adolescents — 9 PLADs, China, 2020
Panliang Zhong, Yunfei Liu, Ning Ma, Jiajia Dang, Di Shi, Shan Cai, Ziyue Chen, Yanhui Dong, Peijin Hu, Jun Ma, Patrick W.C Lau, Randall S. Stafford, Yi Song
2024, 6(9): 151-156. doi: 10.46234/ccdcw2024.031
Abstract(1371) HTML (41) PDF 512KB(16)
Abstract:
What is already known about this topic?

Myopia has been identified as a significant emerging challenge and policy priority among children and adolescents in China by the Ministry of Education and seven other departments. Limited research has been conducted to investigate the collective impact of outdoor time and other modifiable factors on the incidence of myopia.

What is added by this report?

This study provides support for the protective effect of combining increased outdoor time with other prevention strategies in reducing the incidence of myopia. The results indicate the presence of a dose-response relationship.

What are the implications for public health practice?

To effectively prevent myopia, it is important to implement comprehensive interventions that encompass various aspects such as outdoor time, eye-use habits, eye-use environments, and lifestyle modifications.

Analysis of Hot Topics Regarding Global Smart Elderly Care Research — 1997–2021
Hongman Wang, Hong Chen, Yuqi Wang
2024, 6(9): 157-161. doi: 10.46234/ccdcw2024.032
Abstract(1505) HTML (15) PDF 728KB(5)
Abstract:
What is already known about this topic?

With the assistance of the internet, big data, cloud computing, and other technologies, the concept of smart elderly care has emerged.

What is added by this report?

This study presents information on the countries or regions that have conducted research on smart elderly care, as well as identifies global hotspots and development trends in this field.

What are the implications for public health practice?

The results of this study suggest that future research should focus on fall detection, health monitoring, and guidance systems that are user-friendly and contribute to the creation of smarter safer communities for the well-being of the elderly.

Inflection Point Age in the Middle and Older Women — Jiangxi Province, China, 2020–2022
Shanlan Yang, Langlang Zhang, Helang Huang, Jiaofeng Wang, Lei Wu, Zhijun Bao
2024, 6(9): 162-167. doi: 10.46234/ccdcw2024.033
Abstract(1110) HTML (20) PDF 2909KB(10)
Abstract:
What is already known about this topic?

Previous studies have predominantly examined the micro-level aspects of women aging inflection points, while macro-level research using big data on the inflection points of aging among middle-aged and elderly women in China is currently limited.

What is added by this report?

This study determined the inflection ages for physiological, psychological, social, and total dimensions in middle-aged, young elderly, and elderly women [(48.0–53.2) vs. (66.3–70.0) vs. (78.4–81.2) years old].

What are the implications for public health practice?

This study is important for gaining a deeper understanding of aging, identifying patterns of aging, and implementing targeted interventions to promote the overall health of Chinese women.

Methods and Applications
Genetic Insights into Glycine’s Protective Role Against CAD — European and East Asia, 2015 and 2020
Jiaying Yu, Zhuolin Zhu, Ting Wang, Yuanhao Wei, Lianjie Huang, Qianru Zhang, Yuting Zhang, Yiran Wang, Guiyou Liu, Xiang Shu, Rennan Feng
2024, 6(9): 168-172. doi: 10.46234/ccdcw2024.034
Abstract(1220) HTML (22) PDF 725KB(10)
Abstract:
Introduction

The purpose of this study is to examine the potential causal relationship between levels of circulating glycine and coronary artery disease (CAD) using a two-step Mendelian randomization (MR) analysis.

Methods

We analyzed data from genome-wide association studies (GWAS) conducted on European and East Asian populations. To assess the causal effects of circulating glycine levels on the risk of CAD. We used the inverse-variance weighting (IVW), weighted median (WM), MR-Egger, and Mendelian Randomization Pleiotropy RESidual Sum and Outlier (MR-PRESSO) methods. Furthermore, we conducted mediation analysis to investigate the contribution of blood pressure and other cardiovascular disease-related traits.

Results

The two-step Mendelian randomization analysis revealed that higher levels of glycine in the blood were associated with a reduced risk of CAD in Europeans [odds ratio (OR)=0.84, 95% confidence interval (CI): 0.72, −0.98; P=0.029] and East Asians: (OR=0.76, 95% CI: 0.66, −0.89; P=3.57×10−4). Sensitivity analysis confirmed the robustness of these findings. Additionally, our results suggest that about 6.06% of the observed causal effect is mediated through genetically predicted systolic blood pressure (SBP) in the European population.

Discussion

Our results contribute to the current knowledge regarding the involvement of glycine in the progression of CAD, and provide valuable methodological insights for the prevention and treatment of this condition.