Discussion on Erythrocyte Transketolase Activity Measurement Methods
Author Information
Author(s): Donald E. King, C. R. Milner, J. E. Buttery, B. R. Chamberlain
Primary Institution: The Queen Elizabeth Hospital
Conclusion
The authors acknowledge that the relationship between the automated and manual methods for measuring erythrocyte transketolase activity is better than initially thought.
Supporting Evidence
- The manual method has been widely accepted since 1971.
- The regression line equation demonstrates the proportional relationship between the two techniques.
- Deming's method is suggested as a more suitable statistical analysis method.
Takeaway
Two methods for measuring a specific enzyme activity were compared, and it turns out they agree more than previously believed.
Methodology
The authors discuss the use of regression analysis to compare the two methods.
Potential Biases
There is a risk of bias in the estimates due to the choice of independent variable in regression analysis.
Limitations
The least squares linear regression is not the most reliable method for statistical analysis in this context.
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