• Bisphosphonates and mortality: confounding in observational studies 

      Bergman, Jonathan; Nordström, Anna Hava; Hommel, Ami; Kivipelto, Miia; Nordström, Peter (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-31)
      <p><i>Summary - </i>Numerous observational studies suggest that bisphosphonates reduce mortality. This study showed that bisphosphonate use is associated with lower mortality within days of treatment, although the association was not significant until the second week. Such an early association is consistent with confounding, although an early treatment effect cannot be ruled out. <p><i>Introduction ...
    • Bone-Specific Drugs and Osteonecrosis of Sites Other Than the Jaw: A Nationwide Cohort Study 

      Nordstrom, Peter; Bergman, Jonathan; Ballin, Marcel; Bjork, Sabine; Nordström, Anna Hava (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-07)
      Bone-specific drugs (BSDs) increase the risk of osteonecrosis of the jaw (ONJ), but whether they increase the risk of osteonecrosis at other sites is not known. Two studies, a cohort study and a case–control study, were conducted using registry data on everyone who was residing in Sweden on December 31, 2005, and who was 50 years of age or older at the time (n = 3,523,912). In the cohort study, ...
    • Effect of berry polyphenols on glucose metabolism: A systematic review and meta-analysis of randomized controlled trials 

      Rambaran, Theresa F.; Bergman, Jonathan; Nordström, Peter; Nordström, Anna Hava (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-26)
      The effect of berry polyphenols on glucose metabolism has been evaluated in several studies; however, the results are conflicting. A systematic review and meta-analysis was therefore conducted to evaluate the effect of berry polyphenol consumption on glucose metabolism in adults with impaired glucose tolerance or insulin resistance. PubMed/MEDLINE, Cochrane Central Register of Controlled Trials, ...
    • Epidemiology of osteonecrosis among older adults in Sweden 

      Bergman, Jonathan; Nordström, Anna Hava; Nordström, Peter (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-09)
      <p><i>Summary - </i>This study estimated the incidence of osteonecrosis in a Swedish, nationwide cohort of older adults. Osteonecrosis was approximately 10 times more common than in previous studies. The strongest risk factors were dialysis, hip fracture, osteomyelitis, and organ transplantation, but only hip fractures could have contributed substantially to the disease burden. <p><i>Introduction ...
    • A multiple risk factor program is associated with decreased risk of cardiovascular disease in 70-year-olds: A cohort study from Sweden 

      Nordström, Anna; Bergman, Jonathan; Björk, Sabine; Carlberg, Bo; Johansson, Jonas; Hult, Andreas; Nordström, Peter (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-11)
      <i>Background</i> - In individuals below 65 years of age, primary prevention programs have not been successful in reducing the risk of cardiovascular disease (CVD) and death. However, no large study to our knowledge has previously evaluated the effects of prevention programs in individuals aged 65 years or older. The present cohort study evaluated the risk of CVD in a primary prevention program for ...
    • Risk Factors for COVID-19 Diagnosis, Hospitalization, and Subsequent All-Cause Mortality in Sweden: A Nationwide Study. 

      Bergman, Jonathan; Ballin, Marcel; Nordström, Anna Hava; Nordstrom, Peter (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-11)
      We conducted a nationwide, registry-based study to investigate the importance of 34 potential risk factors for coronavirus disease 2019 (COVID-19) diagnosis, hospitalization (with or without intensive care unit [ICU] admission), and subsequent all-cause mortality. The study population comprised all COVID-19 cases confirmed in Sweden by mid-September 2020 (68,575 non-hospitalized, 2494 ICU hospitalized, ...
    • Time-varying risk of death after SARS-CoV-2 infection in Swedish long-term care facility residents: a matched cohort study 

      Ballin, Marcel; Ioannidis, John P.; Bergman, Jonathan; Kivipelto, M; Nordström, Anna Hava; Nordström, Peter (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-24)
      Objectives - To evaluate whether SARS-CoV-2 infection in residents of long-term care (LTC) facilities is associated with higher mortality after the acute phase of infection, and to estimate survival in uninfected residents.<p> <p>Design - Extended follow-up of a previous, propensity score-matched, retrospective cohort study based on the Swedish Senior Alert register.<p> <p>Setting - LTC ...
    • Time-varying risk of death after SARS-CoV-2 infection in Swedish long-term care facility residents: a matched cohort study 

      Ballin, Marcel; Ioannidis, John P.; Bergman, Jonathan; Kivipelto, Miia; Nordström, Anna; Nordström, Peter (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-24)
      Objectives - To evaluate whether SARS-CoV-2 infection in residents of long-term care (LTC) facilities is associated with higher mortality after the acute phase of infection, and to estimate survival in uninfected residents.<p> <p>Design - Extended follow-up of a previous, propensity score-matched, retrospective cohort study based on the Swedish Senior Alert register.<p> <p>Setting - LTC ...
    • Trends in Hip Fracture Incidence, Length of Hospital Stay, and 30-Day Mortality in Sweden from 1998–2017: A Nationwide Cohort Study 

      Nordström, Peter; Bergman, Jonathan; Ballin, Marcel; Nordström, Anna (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-02-15)
      In this nationwide cohort study, we investigated trends in hip fracture incidence, hospital length of stay (LOS), and 30-day mortality after admission in Sweden. The cohort included all individuals in Sweden aged ≥ 50 years with a first hip fracture diagnosis during 1998–2017 (N = 313,761). The outcomes were hip fracture incidence and 30-day mortality. The results showed that the incidence of hip ...