Ylva Trolle Lagerros

Summary

Affiliation: Karolinska Institutet
Country: Sweden

Publications

  1. ncbi request reprint Physical activity as a determinant of mortality in women
    Ylva Trolle-Lagerros
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
    Epidemiology 16:780-5. 2005
  2. pmc Estimation of physical activity levels using cell phone questionnaires: a comparison with accelerometry for evaluation of between-subject and within-subject variations
    Christin Bexelius
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
    J Med Internet Res 13:e70. 2011
  3. pmc How valid are Web-based self-reports of weight?
    Stephanie Erika Bonn
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
    J Med Internet Res 15:e52. 2013
  4. doi request reprint Sleep characteristics and cardiovascular events in a large Swedish cohort
    Anna Westerlund
    Department of Medicine Solna, Clinical Epidemiology Unit, Karolinska Institutet, Eugeniahemmet T2, 171 76 Stockholm, Sweden
    Eur J Epidemiol 28:463-73. 2013
  5. pmc An interactive internet-based plate for assessing lunchtime food intake: a validation study on male employees
    Madeleine Svensson
    Karolinska Institutet, Department of Medicine, Unit of Clinical Epidemiology, Stockholm, Sweden
    J Med Internet Res 15:e13. 2013
  6. pmc Perinatal outcomes after bariatric surgery: nationwide population based matched cohort study
    Nathalie Roos
    Department of Medicine, Clinical Epidemiology Unit, Karolinska Institutet, Stockholm, Sweden
    BMJ 347:f6460. 2013
  7. doi request reprint The effect of reminders in a web-based intervention study
    Madeleine Svensson
    Unit of Clinical Epidemiology, T2, Department of Medicine, Karolinska Institutet, 171 76 Stockholm, Sweden
    Eur J Epidemiol 27:333-40. 2012
  8. pmc Active-Q: validation of the web-based physical activity questionnaire using doubly labeled water
    Stephanie Erika Bonn
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
    J Med Internet Res 14:e29. 2012
  9. pmc Measures of physical activity using cell phones: validation using criterion methods
    Christin Bexelius
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
    J Med Internet Res 12:e2. 2010

Detail Information

Publications9

  1. ncbi request reprint Physical activity as a determinant of mortality in women
    Ylva Trolle-Lagerros
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
    Epidemiology 16:780-5. 2005
    ..We aimed to quantify the effect of physical activity on overall mortality in younger women and to assess the effect of past versus current activity...
  2. pmc Estimation of physical activity levels using cell phone questionnaires: a comparison with accelerometry for evaluation of between-subject and within-subject variations
    Christin Bexelius
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
    J Med Internet Res 13:e70. 2011
    ....
  3. pmc How valid are Web-based self-reports of weight?
    Stephanie Erika Bonn
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
    J Med Internet Res 15:e52. 2013
    ..Although numerous studies have shown good agreement between self-reported and measured weight using paper-based questionnaires, the validity of using the Web to inquire about weight is unknown...
  4. doi request reprint Sleep characteristics and cardiovascular events in a large Swedish cohort
    Anna Westerlund
    Department of Medicine Solna, Clinical Epidemiology Unit, Karolinska Institutet, Eugeniahemmet T2, 171 76 Stockholm, Sweden
    Eur J Epidemiol 28:463-73. 2013
    ..Our results suggest that symptoms of sleep disturbance should be taken into account when assessing the association between short sleep and cardiovascular disease...
  5. pmc An interactive internet-based plate for assessing lunchtime food intake: a validation study on male employees
    Madeleine Svensson
    Karolinska Institutet, Department of Medicine, Unit of Clinical Epidemiology, Stockholm, Sweden
    J Med Internet Res 15:e13. 2013
    ..Misreporting food intake is common because most health screenings rely on self-reports. The more accurate methods (eg, weighing food) are costly, time consuming, and impractical...
  6. pmc Perinatal outcomes after bariatric surgery: nationwide population based matched cohort study
    Nathalie Roos
    Department of Medicine, Clinical Epidemiology Unit, Karolinska Institutet, Stockholm, Sweden
    BMJ 347:f6460. 2013
    ..To compare perinatal outcomes in births of women with versus without a history of bariatric surgery...
  7. doi request reprint The effect of reminders in a web-based intervention study
    Madeleine Svensson
    Unit of Clinical Epidemiology, T2, Department of Medicine, Karolinska Institutet, 171 76 Stockholm, Sweden
    Eur J Epidemiol 27:333-40. 2012
    ..Frequent reminders were effective on response rates, especially for those with high Internet availability. The highest increases in response rates were found in September...
  8. pmc Active-Q: validation of the web-based physical activity questionnaire using doubly labeled water
    Stephanie Erika Bonn
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
    J Med Internet Res 14:e29. 2012
    ..Active-Q assesses habitual activity during the past year via questions in four different domains: (1) daily occupation, (2) transportation to and from daily occupation, (3) leisure time activities, and (4) sporting activities...
  9. pmc Measures of physical activity using cell phones: validation using criterion methods
    Christin Bexelius
    Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
    J Med Internet Res 12:e2. 2010
    ..Data collected on physical activity in large epidemiological studies is often based on paper questionnaires. The validity of these questionnaires is debated, and more effective methods are needed...