Sentences with phrase «several large cohort studies»
Several large cohort studies of medical x-ray technicians and nuclear industry workers suggest a slight increase in cancer risk at exposures below 100 mSv, Shore says.
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Several studies have explored the link between sleep apnea and pneumonia, although they have been smaller than this large cohort study.
Several countries, including the United Kingdom and Estonia, have assembled similar studies of large groups of people, or cohorts, that collect DNA and health information on volunteers in repositories, sometimes called «biobanks.»
In this study, researchers used blood samples collected several years before breast cancer development from two large UK cohorts of women — the MRC National Survey of Health and Development and the UK Collaborative Trial of Ovarian Cancer Screening.
Our study has several strengths despite the limitations, including population - based identification of cases from a large birth cohort and the use of prospectively collected information on influenza infection and vaccination documented in medical records.
The strengths of the present study include the large size and the relatively homogeneous nature of the cohort, which reduced confounding by several variables, such as access to medical care, educational attainment, and socioeconomic status.
The review authors stated, «Several large scale prospective cohort studies found positive correlation between artificial sweetener use and weight gain.»