نتایج جستجو برای: chi2 space

تعداد نتایج: 496479  

Journal: :Journal of the American College of Cardiology 2000
D Hasdai R M Califf T D Thompson J S Hochman E M Ohman M Pfisterer E R Bates A Vahanian P W Armstrong D A Criger E J Topol D R Holmes

OBJECTIVES This study characterized clinical factors predictive of cardiogenic shock developing after thrombolytic therapy for acute myocardial infarction (AMI). BACKGROUND Cardiogenic shock remains a common and ominous complication of AMI. By identifying patients at risk of developing shock, preventive measures may be implemented to avert its development. METHODS We analyzed baseline varia...

Journal: :Journal of the International Society of Sports Nutrition 2007
Andrea Petróczi Declan P Naughton Jason Mazanov Allison Holloway Jerry Bingham

BACKGROUND Athletes are expected to consider multiple factors when making informed decision about nutritional supplement use. Besides rules, regulations and potential health hazards, the efficacy of different nutritional supplements in performance enhancement is a key issue. The aim of this paper was to find evidence for informed decision making by investigating the relationship between specifi...

Journal: :Circulation 1998
M A Sloan C A Sila K W Mahaffey C B Granger W T Longstreth P Koudstaal H D White J M Gore M L Simoons W D Weaver C L Green E J Topol R M Califf

BACKGROUND Limited information exists on risk factors for mortality after thrombolysis-related intracranial hemorrhage. We wished to determine the characteristics associated with 30-day mortality after thrombolysis-related intracranial hemorrhage. METHODS AND RESULTS We performed an observational analysis within a randomized trial of 4 thrombolytic therapies, conducted in 1081 hospitals in 15...

Journal: :Canadian journal of public health = Revue canadienne de sante publique 2003
Bonnie Cohen Susan Evers Steve Manske Kim Bercovitz H Gayle Edward

OBJECTIVES To determine the prevalence of smoking, low levels of physical activity, and missing breakfast among students (n=318) in grades 9 through 12 in three schools in southwestern Ontario; to see if these behaviours were associated; and, whether there were gender differences. METHODS A self-administered survey was conducted in grade 10 English classes. RESULTS The response rate was 87....

Journal: :Journal of the South African Veterinary Association 2004
J W Magona J Walubengo W Olaho-Mukani

A pilot survey using a structured questionnaire was conducted in Tororo and Busia districts of Uganda on the knowledge and attitudes of cattle owners regarding tsetse fly and trypanosomosis control, in order to understand factors that hindered their full participation. A total of 81 cattle owners was randomly selected and interviewed, of which 92.5% were aware of tsetse flies and trypanosomosis...

Journal: :Journal of acquired immune deficiency syndromes 2008
Mark Lurie Paul Pronyk Emily de Moor Adele Heyer Guy de Bruyn Helen Struthers James McIntyre Glenda Gray Edmore Marinda Kerstin Klipstein-Grobusch Neil Martinson

BACKGROUND With the rollout of antiretroviral therapy in South Africa and its potential to prolong the lives of HIV-infected individuals, understanding the sexual behavior of HIV-positive people is essential to curbing secondary HIV transmission. METHODS We surveyed 3,819 HIV-positive patients during their first visit to an urban wellness clinic and a rural wellness clinic. RESULTS Urban re...

Journal: :BMJ 2002
Paul Little Clare Gould Michael Moore Greg Warner Joan Dunleavey Ian Williamson

OBJECTIVES To identify which children with acute otitis media are at risk of poor outcome and to assess benefit from antibiotics in these children. DESIGN Secondary analysis of randomised controlled trial cohort. SETTING Primary care. PARTICIPANTS 315 children aged 6 months to 10 years. INTERVENTION Immediate or delayed (taken after 72 hours if necessary) antibiotics. MAIN OUTCOME MEA...

Journal: :Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco 2004
Eric T Moolchan

Menthol smoking may influence the development of tobacco addiction and related health consequences, yet limited data on menthol smoking by youth are available. We assessed usual brand menthol preference by Baltimore-area teenage smokers applying to a smoking cessation study between September 1999 and December 2002. Of a biethnic (Black and White) sample of 593 youths (mean age=15.5+/-1.4 years,...

Journal: :The European respiratory journal 1998
P J Poi S Y Chuah P Srinivas C K Liam

In the world of medical literature, little has been reported about the fears of patients undergoing bronchoscopy. The aim of this study was to identify the common fears of patients undergoing fibreoptic bronchoscopy and to determine whether any factors might contribute to reducing these fears. One hundred and four consecutive patients undergoing bronchoscopy were interviewed. Sixty one patients...

Journal: :Sao Paulo medical journal = Revista paulista de medicina 2006
Quirino Cordeiro Karen Miguita Elisabete Miracca Hélio Elkis Homero Vallada

Typical antipsychotics have a high affinity for dopamine receptors. It is therefore of interest to investigate such loci in pharmacogenetic studies on psychosis. We investigated the hypothesis that Ser9Gly polymorphism of the DRD3 gene may play a role in the differences in individual response to typical antipsychotics between schizophrenic patients. The sample was composed of 53 good responders...

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