Rauf Ahmad, Rizwana Rauf, Musa Kaleem, Hamad Siddiqui, Muhammad Naeemullah, Yasin Soomro, Aftab Ahmad.
Evaluation of correlation between diabetes and hypertension and contributing various factors.
Pak J Med Res Jan ;44(1):32-7.

Design: Diabetic patients in the Hospitals of Rawalpindi and Islamabad. Setting: Armed Forces Institute of Cardiology Rawalpindi; Heart`s International, Rawalpindi; Al Shifa Hospital Islamabad Main outcome measures: Age, sex, fasting plasma glucose level, random glucose level, systolic blood pressure, diastolic blood pressure, income, occupation, education and employment status. Results: All the 234 diabetic patients were categorized into group A comprising of diabetes with hypertension and group B comprising of diabetes with hypotension as set by WHO criteria. Both groups A and B were recognized after comparison with group C comprising of Normal/Control subjects. The plasma glucose level and blood pressure of all the 234 patients were measured. Only 17% diabetic patients were found with hypertension and having significant correlation (p < 0.05) of systolic blood pressure and plasma glucose values. But no significant correlation was noted between diabetic patients with hypotension (group B) and group C. In general, we observed higher levels of morbidity in the lower socio-economic class. Conclusion: There exists no correlation of systolic and diastolic blood pressure with plasma glucose value between the overall diabetic patients and control group.of subjects. However, there exists positive correlation of r = +0.412 between systolic blood pressure and plasma glucose level within the patients of group A, comprising of diabetes with hypertension.

USER COMMENTS

In the methods section, authors forgot to mention whether and how did they evaluate correlations. Also in table 3, authors give t-values and and p-values. Quite interestingly, a t-value of 9.96 was given a p-value of 0.59. I am unable to understand it, may be someone can help me. And this is not just one p-value, there are many such errors in the table. Now, either t-values are incorrect or p-values are incorrect. Surprisingly, how did such an obvious error escaped the review and editorial process.
Posted by: rqayyum on Aug 2005

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