对于近眼光评估工具 (NETRA) 的可重复性的多变量分析
1Optometry, University of Johannesburg, Johannesburg, Gauteng, South Africa nabeelah@uj.ac.za.
BMJ open ophthalmology
|November 25, 2023
概括
折射评估的近视工具 (NETRA) 显示了折射状态测量,特别是球形功率的良好重复性. 这种智能手机工具是眼睛护理的有希望的,廉价的选择,特别是在服务不足的地区.
科学领域:
- 眼科和视觉科学 眼科和视觉科学
- 生物医学工程 生物医学工程
- 公共卫生技术 公共卫生技术
背景情况:
- 准确的折射状态评估对于视力纠正和眼睛健康管理至关重要.
- 现有的折射率评估方法可能是昂贵的,庞大的,或需要专门的人员.
- 基于智能手机的工具提供了可访问和便携式视力查的潜力.
研究的目的:
- 通过近视折射评估工具 (NETRA) 评估折射状态测量的可重复性.
- 评估NETRA对不同折射元件的协议和可靠性.
主要方法:
- 279名参与者 (9-63岁) 进行了连续两次每只眼睛的NETRA测量.
- 统计分析包括布兰德-阿尔特曼图,可重复性系数和类内相关系数 (ICC).
- 重点是对右眼的测量,分析球形和反耻辱系数.
主要成果:
- 对于球形折射功率,NETRA表现出良好的一致性 (ICC=0.96).
- 与没有循环的刻印系数 (1.63 D) 相比,反刻印系数 (0.56-0.58 D) 的重复性更高.
- 虽然平均差异很小,但对耻辱系数而言,95%的协议界限更宽.
结论:
- NETRA是一个潜在的有价值,廉价和便携的工具,用于在各种环境中进行折射评估,包括资源有限的地区.
- 该工具的主观性质可能会给年轻人带来挑战;对于这一群体来说,建议使用循环.
- 网络显示了改善可访问性折射误差选和管理的承诺.
相关概念视频
Multiple Comparison Tests
Multiple comparison test, abbreviated as MCT, is a post hoc analysis generally performed after comparing multiple samples with one or more tests. An MCT will help identify a significantly different sample among multiple samples or a factor among multiple factors.
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
It would be easy to compare two samples using a significance alpha level of 0.05. In other words, there is only one sample pair to be compared. However, it would be difficult to identify a significantly different sample if the number...
Multiple Regression
Multiple regression assesses a linear relationship between one response or dependent variable and two or more independent variables. It has many practical applications.
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Farmers can use multiple regression to determine the crop yield based on more than one factor, such as water availability, fertilizer, soil properties, etc. Here, the crop yield is the response or dependent variable as it depends on the other independent variables. The analysis requires the construction of a scatter plot...
Variability: Analysis
Measures of variability are statistical metrics that reveal the dispersion pattern within a dataset. They are pivotal in biostatistics, providing insights into the heterogeneity within health and biological data. Variability signifies the degree to which data points diverge from one another, helping researchers understand the potential range of values and associated uncertainty within the data.
The range is a simple measure of variability, indicating the difference between the highest and...
The range is a simple measure of variability, indicating the difference between the highest and...
One-Compartment Open Model: Wagner-Nelson and Loo Riegelman Method for ka Estimation
This lesson introduces two critical methods in pharmacokinetics, the Wagner-Nelson and Loo-Riegelman methods, used for estimating the absorption rate constant (ka) for drugs administered via non-intravenous routes. The Wagner-Nelson method relates ka to the plasma concentration derived from the slope of a semilog percent unabsorbed time plot. However, it is limited to drugs with one-compartment kinetics and can be impacted by factors like gastrointestinal motility or enzymatic degradation.
On...
On...


