نتایج جستجو برای: casecontrol studies

تعداد نتایج: 1426355  

Journal: :Epidemiology 2014
Nathalie C Støer Haakon E Meyer Sven Ove Samuelsen

A frequently used study design within epidemiology is large cohort studies. In some situations additional information which is not included in the cohort, for instance biological material stored in biobanks, is required. The availability of such material is usually limited and might be very expensive to analyze for the entire cohort. A reasonable strategy is therefore to restrict the study samp...

Journal: :iranian journal of immunology 0
tawfik jasim mohammad al-marzook department of microbiology, al-kindy college of medicine, baghdad university, baghdad, iraq batool mutar mahdi department of microbiology, al-kindy college of medicine, baghdad university, baghdad, iraq hyam raouf department of microbiology, al-kindy college of medicine, baghdad university, baghdad, iraq haider hashim zalzala department of microbiology, al-kindy college of medicine, baghdad university, baghdad, iraq laheeb ali abid department of microbiology, al-kindy college of medicine, baghdad university, baghdad, iraq zena nehad department of microbiology, al-kindy college of medicine, baghdad university, baghdad, iraq

background: cholecystitis is one of the major digestive diseases. its prevalence is particularly high in some populations. significant risk factors associated with cholecystitis include age, sex, obesity, diet, parity and type 2 diabetes. objective: to determine the association between hla-drb1 and cholecystitis. methods: this casecontrol study included forty iraqi arab patients who had cholecy...

Journal: :International Journal of Global Operations Research 2023

Childhood tuberculosis in Indonesia is the third most common world, 2020 number of new child Tuberculosis cases decreased by 32.4%, this still far from government's target 2024, which 90%. Bandung Regency has 62 health centers, highest TB at Linggar Health Center, namely 42 children with due to family factors that have smoking habits. The aim study was determine relationship between habits and ...

Identity is seen as a cultural and social construct, which indicates how we have been embodied and how we might represent ourselves. The knowledge that identities are the outputs of discourses is a familiar characteristic of some societal concepts. Gender, as an identity or a sense of our identity we build for ourselves, rather than something we are born with, is a constructed cultural category...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - دانشکده علوم 1391

1. to determine whether difference in birth body mass influenced growth performance in pipistrellus kuhlii we studied a total of 12 captive-born neonates. bats were assigned to two body mass groups: light birth body mass (lbw: 0.89 ± 0.05, n=8) and heavy birth body mass (hbw: 1.35 ± 0.08, n=4). heavier body mass at birth was associated with rapid postnatal growth (body mass and forearm length) ...

2016
Wenfang Tang Ranwei Li Jingjin Tan Yaqin Yu Lijing Zhao Xingxing Li Shan Jiang Rihui Liu Ke Wang

Background: Conflicting results have been reported regarding the correlation of the methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism and the risk of lung cancer as well as response to chemotherapy. Objective: To estimate the correlations of the MTHFR C677T polymorphism and risk of lung cancer as well as response to chemotherapy by conducting a meta-analysis. Methods: A comprehensi...

2011
Jannike Øyen

Introduction Low-energy distal radius fractures normally occur earlier in life than hip and spine fractures and may be the first presentation of osteoporosis. Few studies have addressed the association between distal radius fracture and osteoporosis. Vitamin D inadequacy is associated with an increased risk of hip fractures, but the association with distal radius fractures has not been explored...

2012
Mohamed A. Abdel-Aty Hany M. Hassan Mohamed Ahmed Ali S. Al-Ghamdi

More researchers started using real-time traffic surveillance data, collected from loop/radar detectors (LDs), for proactive crash risk assessment. However, there is a lack of prior studies that investigated the link between real-time traffic data and crash risk of reduced visibility related (VR) crashes. Two issues that have not explicitly been addressed in prior studies are; (1) the possibili...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 0

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

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