Arch Iran Med
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Food insecurity has a considerable impact on the social, physical, and psychological well-being of people and there is no food security assessment tool specific for Iranians. This study aimed to develop and assess the validity and reliability of an Iranian-specific food security questionnaire. ⋯ Our findings indicated that the developed questionnaire was a valid and reliable instrument to measure household food insecurity of Iranian families.
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Longitudinal studies are very common in medical, behavioral, and interventional sciences. One measure of effect of interest in longitudinal studies is risk ratio, naturally estimated by log-binomial regression which suffers from convergence problem. Odds ratio does not well approximate risk ratio when the outcome is common, so alternative methods have been introduced in cohort studies with one follow-up visit. ⋯ Odds ratio (OR) does not approximate risk ratio (RR) well when the outcome is common, so alternative methods have been introduced in cohort studies with one follow-up visit. In this paper, we illustrate two simple methods: the COPY method and the modified log-Poisson regression for RR estimation in longitudinal data setting. Our unpublished simulation study on RR estimation in longitudinal data setting suggests that the COPY method performs well in terms of closeness of the RR estimate and true RR (mean square error) and so we suggest this method for RR estimation in longitudinal data setting.data setting.
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Lipid abnormalities are major risk factors for cardiovascular diseases. In addition to age and sex, other variables can affect serum lipid levels, warranting the determination of population-specific reference values. This study aimed to determine age- and sex-specific reference values for serum total cholesterol (TC), low-density lipoprotein-cholesterol (LDL-C), high-density lipoprotein-cholesterol (HDL-C), and triglycerides (TG) in healthy Tehranian adults. ⋯ Reference values for serum TC, LDL-C, HDL-C, and TG in healthy Tehranian adults were determined, and these values could provide the basis for better decision making in both prevention and clinical settings.
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Most pancreatic masses are primary ductal adenocarcinomas; however, with the advent of new imaging studies and increasing survival of cancer patients, there are more cases with the diagnosis of secondary metastatic cancer to the pancreas. There is no study regarding cancer metastases to the pancreas from Iran. In this study, we retrieved all of the cases with the diagnosis of secondary cancer of pancreas in the affiliated hospitals of Shiraz University of Medical Sciences. ⋯ Pancreas is not a common location for metastases; however, colon, stomach, kidney and lung seem to be the most common primary tumors with metastases to the pancreas. Our report is the first study about pancreatic metastatic tumors from Iran.
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Hydralazine is an FDA-approved antihypertensive agent which has been utilized for years either alone or in combination with other medications especially the beta-blockers. Hydralazine works as a direct-acting vasodilator, thereby exerting a decrease in vascular resistance and increase in intravascular volume. ⋯ However, studies and case reports of acute hydralazine toxicity and its effects on electrocardiographic changes are rare, and most of the medical literature have only highlighted its immunological side effects. In this report, we are presenting a case of acute hydralazine overdose in a young woman who ended up in CCU due to remarkably abnormal electrocardiogram and unstable hemodynamics followed by myocardial infarction.