Browsing by Subject "Cohort study"

Now showing items 1-6 of 6

    • All-cause and COVID-19 mortality in Qatar during the COVID-19 pandemic 

      Alnuaimi, Asma A.; Chemaitelly, Hiam; Semaan, Sandy; Almukdad, Sawsan; Al-Kanaani, Zaina; ... more authors ( BMJ Publishing Group , 2023 , Article)
      Objective To investigate all-cause mortality, COVID-19 mortality and all-cause non-COVID-19 mortality in Qatar during the COVID-19 pandemic. Methods A national, retrospective cohort analysis and national, matched, retrospective ...

    • The effects of Ramadan fasting on clinical and biochemical markers among hemodialysis patients: A prospective cohort study. 

      Khazneh, Emad; Qaddumi, Jamal; Hamdan, Zakaria; Qudaimat, Falasteen; Sbitany, Asmaa; ... more authors ( Public Library of Science , 2019 , Article)
      Ramadan fasting is compulsory for all healthy adult Muslims. Although sick people are exempted from Ramadan fasting, some patients such as hemodialysis patients prefer to fast during Ramadan. The effect of Ramadan fasting ...

    • Exposure to Chinese Famine during Early Life Increases the Risk of Fracture during Adulthood 

      Shi, Zumin; Shi, Xinyu; Yan, Alice F. ( MDPI , 2022 , Article)
      This study focused on identifying whether exposure to the Chinese Great Famine (1959–1961) in early life amplified the potential for fractures in adulthood. The survey was conducted using data from the 1997–2015 China ...

    • The Qatar Biobank: background and methods 

      Al Kuwari, Hanan; Al-Thani, Asma; Al Marri, Ajayeb; Al Kaabi, Abdulla; Abderrahim, Hadi; ... more authors ( BioMed Central , 2015 , Article)
      Background: The Qatar Biobank aims to collect extensive lifestyle, clinical, and biological information from up to 60,000 men and women Qatari nationals and long-term residents (individuals living in the country for ≥15 ...

    • Short- and longer-term all-cause mortality among SARS-CoV-2- infected individuals and the pull-forward phenomenon in Qatar: a national cohort study 

      Hiam, Chemaitelly; Faust, Jeremy Samuel; Krumholz, Harlan M.; Ayoub, Houssein H.; Tang, Patrick; ... more authors ( Elsevier , 2023 , Article)
      ObjectivesWe assessed short-, medium-, and long-term all-cause mortality risks after a primary SARS-CoV-2 infection. MethodsA national, matched, retrospective cohort study was conducted in Qatar to assess risk of all-cause ...

    • Why does the adverse effect of inappropriate MRI for LBP vary by geographic location? An exploratory analysis. 

      Shraim, Mujahed; Cifuentes, Manuel; Willetts, Joanna L; Marucci-Wellman, Helen R; Pransky, Glenn ( BMC , 2019 , Article)
      Early magnetic resonance imaging (eMRI) for nonspecific low back pain (LBP) not adherent to clinical guidelines is linked with prolonged work disability. Although the prevalence of eMRI for occupational LBP varies substantially ...