نتایج جستجو برای: Case-Control
تعداد نتایج: 2543674 فیلتر نتایج به سال:
introduction: diabetes mellitus is an growing national and international public health concern. the number of people affected by diabetes in world by 2030 will be 69% in developing countries. regular physical activity plays a key role in the management of type 2 diabetes melitus, particularly glycemic control. it has been recommended that peoples with type 2 diabetes participate in moderate-int...
ارائه راهکارهایی مناسب جهت تشخیص دقیق تر و بهتر گلوکوم مادرزادی و جلوگیری از پیشرفت آن. روش مطالعه: 50 کودک مبتلا به گلوکوم مادرزادی (گروه case) و 50کودک سالم (گروه control) در این مطالعه مورد بررسی قرار گرفتند. هر دو گروه مورد معاینه قرار گرفتند وتست پتانسیل برانگیخته از بینایی((vep روی آنها انجام شد. متغیرهای اندازه گیری شده شامل تاخیر فاز(latency) ودامنه(amplitude) بودند.نتایج ثبت و فراوا...
به منظور کارآیی داروی کلونیدین در درمان کودکان بیش فعال 6-17 ساله، تعداد 20 نفر از کودکانی که به درمانگاه اطفال بیمارستان روز به مراجعه کردند و تشخیص adhd برای آنها گذاشته شده بود، بطور random انتخاب شدند این 20 کودک بطور random به دو گروه 10 نفر تقسیم شدند در گروه case کودکان بیمار هفته اول متیل فندیت گرفتند و 3 هفته بعد نتیل فنیدیت و کلونیدین دریافت کردند و گروه control هفته فندیت گرفتند و 3 ...
the purpose of the present study is to find out whether bilinguals of khuzestan-arab origin or monolinguals of iranian origin code-switch during learning or speaking english and which group is more susceptible to code-switch. to this end, the students of 24 classes from high schools and pre- university centers were screened out, and interviewed and their voices and code-switchings were recorded...
background & aim: case-crossover studies are the case-control version of crossover studies. in these studies, cases and controls are the same subjects. the term crossover is applied for designs that all subjects pass through both treatment (exposure) and placebo (non-exposure) phases. in fact they are crossover of subjects between periods of exposure and non-exposure. this design ...
many mobile and off-grid devices include electronics and other electrical consumers like servo drives, which need a quite low supply power. since the price for photovoltaic modules drops continuously, photovoltaic power supply is interesting in more and more applications. in solar powered systems, a battery is needed to store energy for the night and cloudy periods. the power electronics of suc...
the purpose of this study was to determine the clinical significance of changes in the plasma adiponectin concentration in patients with bronchial asthma and to test the association between the single nucleotide polymorphisms (snps) rs2241766 and rs1501299 in the adipoq gene and bronchial asthma in the chinese li population.we selected 120 cases and 120 controls, and plasma adiponect...
conclusions the findings suggested that according to the ecological conditions of ahvaz, a family history of ms may increase the risk of developing ms. results in both cases and controls, no significant associations were found between arab ethnicity and incidence of ms, marital status and risk of ms in ahvaz, or more than 15-year residency in ahvaz, birth in khuzestan, and month of birth and th...
background: tuberculosis (tb) is still a major cause of morbidity and mortality in both developed and developing countries. delay in accessing tuberculosis care is associated with the highest densities of mycobacterium tuberculosis (m. tuberculosis) bacilli on sputum smears. objectives: the current study aimed to determine the extent of delay, and the major health system contributing factors to...
background and objectives: multiple sclerosis (ms) is the most prevalent autoimmune disease of the central nervous system, and it has been suggested that nutrition might play a role in the etiology of ms. this study was aimed to evaluate the relationship between ms risk and intake of some macro- and micro-nutrients in tehran (iran). materials and methods: in this hospital based, case-control st...
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