Article Critique
The researcher used a considerable high population in the study. A population of 1441 patients was used from which the sample was made. The sample was 20% of the population, which is a considerate representation in any research. Logistic regression was used to predict retinopathy. Logistic regression has several advantages compared to discriminate analysis. It is more robust and can handle non-linear effects. There is also no homogeneity of variance assumption and error terms are not assumed. However, this method requires more data compared to what the research used to get meaningful results (Zhang et al. 1275).
Assignment
The researchers achieved the expected objectives because the study was carried out in a systematic way that led to reliable results. There was a proper separation between patients with better metabolic rate for those with poorer metabolic rate.
The research used mathematical estimations to calculate risks involved. The researcher went on to analyze the development of retinopathy in type 1 diabetic patients. All these mathematical analyses make the study well substantiated, but a person with less knowledge of statistical analysis may find it difficult to interpret the information.
Results
The researcher illustrated the results in the form of percentages. The results show the status of each group of patients based on poor metabolic control rate or good metabolic control (Zhang et al. 1276). Additionally, the research illustrated results using the graphical method. The illustration of the outcome was formal, however; the researcher could have considered using tables and figures.
Interpretation
Illustration has been done visually using a graph. It illustrates that the strength of the study. The only weakness there would be is that the person accessing this information must have specialized knowledge of mathematics and statistics to interpret correctly the research findings.
Extrapolation
The study discovered the clinical reality concerning the diabetic retinopathy. However, the researcher failed to address any future changes that might occur and provide recommendations for future research.
Work cited
Zhang, LiYing., Krzentowski, Georges., Albert, Adelin., and Lefebvre, Pierre. J. "Risk of
developing retinopathy in Diabetes Control and Complication trial type 1 diabetic patients with good or poor metabolic control." Diabetes care 24.7 (2001): 1275-1279.
