Browsing by Author "Kai, Jia-Yan"
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- Association between ambient air pollution and dry eye symptoms among Chinese individuals during the COVID-19 pandemic: a national-based studyPublication . Kai, Jia-Yan; Wu, Yi-Bo; Dong, Xing-Xuan; Miao, Yi-Fan; Li, Dan-Lin; Hu, Dan-Ning; Lança, Carla; Grzybowski, Andrzej; Pan, Chen-WeiPurpose: To examine the association between ambient air pollution and dry eye symptoms (DES) during the COVID-19 pandemic and explore whether air pollution had increased the risk of DES to a greater extent than other risk factors. Methods: A nationwide cross-sectional survey was conducted from June 20, 2022 to August 31, 2022. The Ocular Surface Disease Index-6 (OSDI-6) questionnaire was used to assess the presence of DES. Logistic regression models were employed to analyze the associations between DES and air pollution variables, including air quality index (AQI), fine particulate matter (PM2.5), PM10, sulfur dioxide (SO2), carbon monoxide (CO), nitrogen dioxide (NO2), ozone (O3) and residing near industrial zones. We explored the interactions of air pollutants and other risk factors in the additive models by calculating the synergy index (SI). Standardized regression coefficients were calculated to compare the relative importance of risk factors for DES. Results: A total of 21,909 participants were included in the analysis. Residing near industrial zones was significantly correlated with a higher risk of DES (Odds ratio (OR): 1.57, 95 % confidence interval (CI): 1.38–1.79). No significant associations were found between DES and air pollutants except SO2 (OR: 1.05, 95 % CI: 1.02–1.09, per standard deviation increment in SO2 concentration). The restricted cubic spline analyses revealed a linear concentration-response relationship between SO2 and DES. The interaction analyses suggested synergetic interactions of SO2 with depression and problematic internet use. Among the risk factors, depression, anxiety, and problematic Internet use contributed more to the increased risk of DES. Conclusion: The association between ambient air pollutants and DES may have been mitigated during the pandemic due to increased time spent indoors. Despite this, our findings support the deleterious health impact of air pollutants. Future urban planning should plan industrial zones further away from residential areas.
- Association between pets and dry eye symptoms: a Chinese national-based studyPublication . Kai, Jia-Yan; Wu, Yi-Bo; Chen, Hui-Min; Hu, Dan-Ning; Lança, Carla; Grzybowski, Andrzej; Zhang, Lijun; Zhang, Xiao-Feng; Pan, Chen-WeiBackground: Pet-derived allergens are another source of indoor air pollution that could affect human health. However, the association between pet ownership and the risk of dry eye symptoms (DES) remains to be elucidated. Methods: We conducted a nationwide cross-sectional survey among Chinese residents aged over 12 years from June 20, 2022, to August 31, 2022. The Ocular Surface Disease Index-6 (OSDI-6) questionnaire was utilized to evaluate the presence of DES. Multivariable logistic regression models were used to analyze the associations between pet ownership and DES. Subgroup analyses were conducted based on sex, age, residence and affective disorders, and sensitivity analysis by excluding participants with major ocular diseases. The interactions between pet ownership and other risk factors on DES were explored in the additive scale by calculating the synergy index (SI). Results: A total of 21,916 subjects replied to the questionnaire. The prevalence of DES was 43.6 % (95 % confidence interval (CI), 43.0 %-44.3 %). Pet ownership was significantly associated with increased risk of DES (Odds ratio (OR): 1.13, 95%CI: 1.05-1.21), especially among the elderly (OR: 1.28, 95%CI: 1.09-1.51) and urban residents (OR: 1.13, 95%CI: 1.04-1.24). The individual effect of allergic rhinitis on DES was 2.59 (95%CI: 1.27-5.53), while the joint effect of pets and allergic rhinitis was 5.26 (95%CI: 1.20-36.74), suggesting a synergistic interaction with a SI of 2.48 (95%CI: 0.25-24.39). Furthermore, the interaction analysis also indicated a synergistic interaction between pet ownership and low health literacy with a SI of 1.12 (95%CI: 0.66-1.87). Conclusion: Pet ownership was identified as a risk factor for DES. The synergistic interaction of pet ownership and allergic rhinitis suggests shared mechanisms between DES and allergic conditions.
- The impact of 25-hydroxyvitamin D and calcium on risk of age-related macular degeneration: a Mendelian randomization studyPublication . Dong, Xing-Xuan; Chen, Dong-Ling; Miao, Yi-Fan; Li, Dan-Lin; Kai, Jia-Yan; Hu, Dan-Ning; Zhang, Xiao-Feng; Lança, Carla; Andrzej, Grzybowski; Pan, Chen-WeiBackground: The relationships between 25-hydroxyvitamin D [25(OH)D] and calcium and age-related macular degeneration (AMD) are unclear. Objectives: This study aimed to investigate the causal role of 25(OH)D concentrations, calcium concentrations, and dietary supplements use of vitamin D and calcium on the risk of AMD and its subtypes. Methods: Independent genetic variants associated with 25(OH)D and calcium concentrations were used as instrumental variables in published genome-wide association studies (GWASs) of European ancestry. The bidirectional 2-sample Mendelian randomization (MR) analyses were performed using summary-level data from the UK Biobank and FinnGen datasets. Sensitivity analyses were conducted to ensure the robustness of the MR results. The meta-analyses were conducted using fixed and random-effect models to provide comprehensive and reliable estimates. Results: A standard deviation increase in calcium concentrations was linked to a 14%, 17%, and 13% reduction in the likelihood of developing AMD (95% confidence interval [CI]: 0.77, 0.97), wet AMD (95% CI: 0.73, 0.95), and dry AMD (95% CI: 0.75, 1.00), respectively. No significant causal relationships were detected between genetically predicted 25(OH)D concentrations and AMD and its subtypes (all P > 0.05). The combined analyses showed that higher calcium concentrations were associated with a reduced risk of overall AMD, with an odds ratio of 0.89 (95% CI: 0.81, 0.98). Conclusions: This study supports the causal relationship between calcium concentrations and the risk of AMD and its subtypes, which may have important implications for the prevention, monitoring, and treatment of AMD.