نتایج جستجو برای: historical cohort study
تعداد نتایج: 4106209 فیلتر نتایج به سال:
Background: Little is known about pulmonary complications induced by Sulfur Mustard (SM), as a chemical warfare agent,especially considering its long term effects. The present study was carried out to investigate the association of α1-antitrypsin(A1AT), Complement component C5a, and Secretory Immunoglobulin A (sIgA) with long-term pulmonary complications on SMexposedindividuals, 20 years after ...
We have evaluated the epidemiological evidence for an aetiological role of varicella zoster virus (VZV) infection in the development of multiple sclerosis (MS). A MEDLINE search of the English language literature for 1965-99 identified 40 studies. These studies were categorized as seroepidemiological (13), case-control (23), historical cohort (2) or ecological (2). One study used both case-cont...
Background: The current health care–associated pneumonia (HCAP) model may be too broad, leading to inappropriate use of broad-spectrum antibiotics. As a result, therapeutic algorithms, such aswhatMaruyama et al validated, have been developed for a more specific therapy. Our study aims to validate this algorithm in our patient population. Methods: This is a single-center, prospective, cohort stu...
background: there is an upward trend for parents to resort to assisted reproductive technology (art) treatment due to delayed childbirth or birth difficulties. objective: this study investigates the pregnancy health and birth outcomes of women who underwent art and analyzes the factors that influence birth weight to become<10 percentile when undergoing art. materials and methods: this study ana...
background: low back pain (lbp) is one of the most common problems among the workers of different industries. the role of occupational factors in causing the lbp has been indicated previously. lbp has great socio-economic costs and most of its costs are related to the chronic lbp. the aim of this study was to identify the occupational risk factors that are related to the progression of the lbp ...
Group B streptococcus (GBS) colonization and disease among pregnant women: a historical cohort study
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