نتایج جستجو برای: prospective studies

تعداد نتایج: 1590085  

Journal: :Lancet 1989
D W Cameron J N Simonsen L J D'Costa A R Ronald G M Maitha M N Gakinya M Cheang J O Ndinya-Achola P Piot R C Brunham

To determine the frequency and risk factors for female to male sexual transmission of human immunodeficiency virus type 1 (HIV-1), a prospective study was carried out in 422 men who had acquired a sexually transmitted disease (STD) from a group of prostitutes with a prevalence of HIV-1 infection of 85%. The initial seroprevalence of HIV among the men was 12%. 24 of 293 (8.2%) initially seronega...

2017
An Pan Yeli Wang Jian-Min Yuan Woon-Puay Koh

BACKGROUND The liver-derived C-reactive protein (CRP) is a sensitive and systemic biomarker of inflammation, and has been associated with increased risk of developing type 2 diabetes in populations other than Chinese. Therefore, we prospectively examined the relation between plasma levels of CRP and risk of type 2 diabetes (T2D) among a Chinese population. METHODS Plasma high-sensitive CRP (h...

2011
André Gaudêncio Ignácio de Almeida Carlos Antônio Garrido Leonardo Eustáquio Vaz Amaral Luiz Fernando Lindenberg Vargas

OBJECTIVE To conduct a prospective study on unstable and incongruent fractures of the acetabulum, in comparison with the literature, covering the type of access, fixation materials, degree of reduction, type of fracture and results after surgery. METHODS The authors evaluated 76 patients with unstable and incongruent fracture of the acetabulum between January 1999 and December 2009. The Marvi...

2011
Karen Perser David Godfrey Leslie Bisson

CONTEXT Double-row rotator cuff repair methods have improved biomechanical performance when compared with single-row repairs. OBJECTIVE To review clinical outcomes of single-row versus double-row rotator cuff repair with the hypothesis that double-row rotator cuff repair will result in better clinical and radiographic outcomes. DATA SOURCES Published literature from January 1980 to April 20...

Journal: :Journal of the American College of Cardiology 2014
Susanna C Larsson Nikola Drca Alicja Wolk

BACKGROUND Although high alcohol consumption has been associated with increased risk of atrial fibrillation (AF), the role of light to moderate drinking remains unclear. OBJECTIVES The study sought to investigate the association between alcohol consumption and AF risk in a prospective study of Swedish men and women and to conduct a meta-analysis of prospective studies to summarize available e...

Journal: :International journal of epidemiology 1997
S G Wannamethee A G Shaper

OBJECTIVE It has been suggested that mortality differences between groups in society may be greater than are indicated by social class based on occupation. We have examined the relationship between social class and mortality using home and car ownership as additional indices of socioeconomic status within social class. DESIGN A prospective study of a cohort of men representative of the social...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1389

this study investigates the strategies native english and persian speakers employ for expressing gratitude in different situations. the strategies of persian efl learners are also compared with english strategies in order to find the differences that may exist between these two languages. social status and size of imposition of the favor are social variables which are investigated in detail for...

Journal: :medical hypothesis, discovery and innovation ophthalmology journal 0
uttio roy chowdhury michael p fautsch

retrospective and prospective studies looking at the role of cerebrospinal fluid pressure (csfp)/intracranial pressure (icp) have stimulated new theories and hypotheses regarding the underlying causal events for glaucoma. most recently, studies supporting a low csfp/icp as a risk factor for glaucoma have been published. this review summarizes the current understanding of csfp/icp and its potent...

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