نتایج جستجو برای: cohort study

تعداد نتایج: 4030161  

Journal: :Journal of counseling psychology 2014
Melanie E Leuty Jo-Ida C Hansen

Empirical evidence supports that aging is related to differences in work attitudes and motivation (Inceoglu, Segers, & Bartram, 2012; Kooij, de Lange, Jansen, Kanfer, & Kikkers, 2011; Ng & Feldman, 2008, 2010), but little research has explored the relations between age and vocational interests. Furthermore, recent studies of age and work attitudes suggest that generational experiences (i.e., bi...

Journal: :Clinical infectious diseases : an official publication of the Infectious Diseases Society of America 2014
Samir Benkouiten Philippe Gautret Khadidja Belhouchat Tassadit Drali Nicolas Salez Ziad A Memish Malak Al Masri Pierre-Edouard Fournier Philippe Brouqui

To investigate the nasal carriage of some respiratory bacterial pathogens that are responsible for infections associated with person-to-person transmission, we conducted a cohort survey of pilgrims departing to Mecca for the 2012 Hajj season. In this report, we demonstrate the acquisition of Streptococcus pneumoniae nasal carriage in returning Hajj pilgrims.

Journal: :Eastern Mediterranean health journal = La revue de sante de la Mediterranee orientale = al-Majallah al-sihhiyah li-sharq al-mutawassit 2010
A R Foroushani K Mohammad M Mahmoodi F Siassi

This cohort study investigated the effect of early life nutrition on later performance in developmental milestones and cognitive tests. Structural equation modelling was carried out on follow-up data from a national birth cohort of 5362 children born in 1 week of 1946 in Britain. Children who were breastfed longer showed earlier developmental milestones. After adjusting for sex, social group an...

Journal: :International journal of epidemiology 2007
Jane Fleming Emily Zhao Daniel W O'Connor Penelope A Pollitt Carol Brayne

version of this article for non-commercial purposes provided that: the original authorship is properly and fully attributed; the Journal and Oxford University Press are attributed as the original place of publication with the correct citation details given; if an article is subsequently reproduced or disseminated not in its entirety but only in part or as a derivative work this must be clearly ...

Objective : Infertility is the inability of a couple to conceive after one and half year of unprotected sex.Infertility is an inability of a person to reproduce, in its normal state or condition. Male infertility is considered as a major problem all over the world. The aim of this study was to investigate the association of the CYP1A1 polymorphisms with idiopathic non-obstructive azoospermia in...

Journal: :American journal of physical anthropology 2014
Kristin Snopkowski Hillard Kaplan

This article presents a biosocial model of fertility decline, which integrates ecological-economic and informational-cultural hypotheses of fertility transition in a unified theoretical framework. The model is then applied to empirical data collected among 500 women from San Borja, Bolivia, a population undergoing fertility transition. Using a combination of event history analysis, multiple reg...

2012
Tabita Björk Ole Brus Walter Osika Scott Montgomery

OBJECTIVES To use simple measures of laterality and hand control that can identify a greater risk of poorer scholastic ability, potentially signalling suboptimal hemispheric lateralisation. DESIGN Analysis of material from a birth cohort study. SETTING Members of the National Child Development Study, a British birth cohort study following people born in 1958. PARTICIPANTS 10 612 children ...

2016
Whitney Barnett Kirsty Brittain Katherine Sorsdahl Heather J. Zar Dan J. Stein

BACKGROUND Critical to conducting high quality research is the ability to attract and retain participants, especially for longitudinal studies. Understanding participant experiences and motivators or barriers to participating in clinical research is crucial. There are limited data on healthy participant experiences in longitudinal research, particularly in low- and middle-income countries. This...

الدوما, عادل, منصورنیا, محمد علی, نعمت اللهی, شهرزاد, هلاکویی نایینی, کورش, پناهی, محمد حسین,

Case-Cohort and nested case-control designs are the most well-known and cost-effective derivatives of prospective studies. Due to the popularity of these designs in recent years, the aim of this study is to provide a comprehensive and up-to-date description of them with respect to methodological issues such as sampling scheme, effect measure estimation, and analysis strategies. Overall, random ...

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