Nils Jakob Knudsen

Nils Jakob Knudsen

Clinical Associate Professor

Member of:

  • Internal Medicine: Endocrinology


  1. 2024
  2. Published

    Selenium supplementation and placebo are equally effective in improving quality of life in patients with hypothyroidism

    Larsen, C. B., Winther, K. H., Cramon, P. K., Rasmussen, Å. K., Feldt-Rasmussen, Ulla, Knudsen, Nils Jakob, Bjørner, Jakob Bue, Schomburg, L., Demircan, K., Chillon, T. S., Gram, J., Hansen, S. G., Brandt, F., Nygaard, Birte, Watt, Torquil, Hegedüs, L. & Bonnema, S. J., 2024, In: European Thyroid Journal. 13, 1, 13 p., e230175.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. 2021
  4. Published

    Does Subclinical Hypothyroidism Add Any Symptoms? Evidence from a Danish Population-Based Study

    Carlé, A., Karmisholt, J. S., Knudsen, Nils Jakob, Perrild, Hans, Thuesen, B. H., Ovesen, L., Rasmussen, L. B. & Pedersen, I. B., 2021, In: American Journal of Medicine. 134, 9, p. 1115-1126.e1

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Influence of educational level on test and treatment for incident hypothyroidism

    Møllehave, Line Tang, Jacobsen, R. K., Linneberg, Allan René, Skaaby, T., Knudsen, Nils Jakob, Jørgensen, T., Kårhus, L. L., Kriegbaum, Margit, Grand, Mia Klinten, Siersma, Volkert Dirk, Lind, B., Andersen, Christen Bertel L, Nygaard, Birte, Medici, B. B., Pedersen, I. B., Ravn-Haren, G. & Thuesen, B. H., 2021, In: Clinical Endocrinology. 94, 6, p. 1025-1034 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. 2020
  7. Published

    The association of thyroid stimulation hormone levels with incident ischemic heart disease, incident stroke, and all-cause mortality

    Møllehave, L. T., Skaaby, T., Linneberg, Allan René, Knudsen, Nils Jakob, Jørgensen, T. & Thuesen, B. H., 2020, In: Endocrine. 68, p. 358–367 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. 2019
  9. Published

    Changes in subtypes of overt thyrotoxicosis and hypothyroidism following iodine fortification

    Petersen, M., Pedersen, I. B., Knudsen, Nils Jakob, Andersen, S., Jorgensen, T., Perrild, Hans, Ovesen, L., Rasmussen, L. B., Thuesen, B. H. & Carlé, A., 2019, In: Clinical Endocrinology. 91, 5, p. 652-659 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Increased Incidence Rate of Hypothyroidism After Iodine Fortification in Denmark: A 20-Year Prospective Population-Based Study

    Petersen, M., Knudsen, Nils Jakob, Carlé, A., Andersen, Stig Ejdrup, Jørgensen, T., Perrild, Hans, Ovesen, L., Rasmussen, L. B., Thuesen, B. H. & Pedersen, I. B., 2019, In: Journal of Clinical Endocrinology & Metabolism. 104, 5, p. 1833-1840 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Previous Live Births and Induced Abortions May Precede Later Development of Graves' Hyperthyroidism

    Carle, A., Knudsen, Nils Jakob, Jorgensen, T., Thuesen, B., Karmisholt, J., Andersen, S. L. & Pedersen, I. B., 2019, In: European Thyroid Journal. 8, 2, p. 70-78

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. 2018
  13. Published

    Thyrotoxicosis after iodine fortification: A 21-year Danish population-based study

    Petersen, M., Knudsen, Nils Jakob, Carlé, A., Andersen, S., Jorgensen, T., Perrild, Hans, Ovesen, L., Rasmussen, L. B., Thuesen, B. H. & Pedersen, I. B., 2018, In: Clinical Endocrinology. 89, 3, p. 360-366 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Trends in Costs of Thyroid Disease Treatment in Denmark during 1995-2015

    Møllehave, L. T., Linneberg, Allan René, Skaaby, T., Knudsen, Nils Jakob, Ehlers, L., Jorgensen, T. & Thuesen, B. H., 2018, In: European Thyroid Journal. 7, 2, p. 75-83 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    Trends in treatments of thyroid disease following iodine fortification in Denmark: a nationwide register-based study

    Møllehave, L. T., Linneberg, Allan René, Skaaby, T., Knudsen, Nils Jakob, Jørgensen, T. & Thuesen, B. H., 2018, In: Clinical Epidemiology. 10, p. 763-770 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. 2016
  17. Published

    Iodine deficiency in pregnancy is prevalent in vulnerable groups in Denmark

    Kirkegaard-Klitbo, D. M., Perslev, K., Andersen, S. L., Perrild, Hans, Knudsen, Nils Jakob, Weber, T., Rasmussen, L. B. & Laurberg, P., Nov 2016, In: Danish Medical Journal. 63, 11, A5286.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Hypothyroid Symptoms Fail to Predict Thyroid Insufficiency in Old People: A Population-Based Case-Control Study

    Carlé, A., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L., Andersen, S. & Laurberg, P., Oct 2016, In: The American Journal of Medicine. 129, 10, p. 1082-1092 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Serum thyroglobulin as a biomarker of iodine deficiency in adult populations

    Krejbjerg, A., Bjergved, L., Bülow Pedersen, I., Carlé, A., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L., Banke Rasmussen, L. & Laurberg, P., Sep 2016, In: Clinical Endocrinology. 85, 3, p. 475-482 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    Parity and 11-Year Serum Thyrotropin and Thyroid Autoantibody Change: A Longitudinal Population-Based Study

    Bjergved, L., Carlé, A., Jørgensen, T., Perrild, Hans, Laurberg, P., Krejbjerg, A., Ovesen, L., Pedersen, I. B., Rasmussen, L. B. & Knudsen, Nils Jakob, Feb 2016, In: Thyroid. 26, 2, p. 203-11 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. 2015
  22. Published

    Gender differences in symptoms of hypothyroidism: a population-based DanThyr study

    Carlé, A., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L. & Laurberg, P., Nov 2015, In: Clinical Endocrinology. 83, 5, p. 717-25 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Serum thyroglobulin before and after iodization of salt: an 11-year DanThyr follow-up study

    Krejbjerg, A., Bjergved, L., Pedersen, I. B., Carlé, A., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L., Rasmussen, L. B. & Laurberg, P., Nov 2015, In: European Journal of Endocrinology. 173, 5, p. 573-81 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Treating Hypothyroidism with Thyroxine/Triiodothyronine Combination Therapy in Denmark: Following Guidelines or Following Trends?

    Michaelsson, L. F., Medici, B. B., la Cour, J. L., Selmer, C., Røder, M., Perrild, Hans, Knudsen, Nils Jakob, Faber, Jens & Nygaard, Birte, Sep 2015, In: European Thyroid Journal. 4, 3, p. 174-80 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. 2014
  26. Published

    Hypothyroid symptoms and the likelihood of overt thyroid failure: a population-based case-control study

    Carlé, A., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, Lars & Laurberg, P., Nov 2014, In: European Journal of Endocrinology. Supplement. 171, 5, p. 593-602 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    Development of Autoimmune Overt Hypothyroidism Is Highly Associated With Live Births and Induced Abortions but Only in Premenopausal Women

    Carlé, A., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L., Rasmussen, L. B. & Laurberg, P., Jun 2014, In: Endocrinology. 99, 6, p. 2241-2249 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published

    Iodine fortification may influence the age-related change in thyroid volume: a longitudinal population-based study (DanThyr)

    Krejbjerg, A., Bjergved, L., Pedersen, I. B., Carlé, A., Jørgensen, T., Perrild, Hans, Ovesen, Lars, Rasmussen, L. B., Knudsen, Nils Jakob & Laurberg, P., Apr 2014, In: European Journal of Endocrinology. 170, 4, p. 507-17 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. Published

    Mandatory iodine fortification of bread and salt increases iodine excretion in adults in Denmark: A 11-year follow-up study

    Rasmussen, L. B., Jørgensen, T., Perrild, Hans, Knudsen, Nils Jakob, Krejbjerg, A., Laurberg, P., Pedersen, I. B., Bjergved, L. & Ovesen, Lars, 2014, In: Clinical Nutrition. 33, 6, p. 1033-1040 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. Published

    Thyroid Function and Body Weight: A Community-Based Longitudinal Study

    Bjergved, L., Jørgensen, T., Perrild, Hans, Laurberg, P., Krejbjerg, A., Ovesen, L., Rasmussen, L. B. & Knudsen, Nils Jakob, 2014, In: PLOS ONE. 9, 4, p. 1-7 7 p., e93515.

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. 2013
  32. Published

    Determinants of serum T4 and T3 at the time of diagnosis in nosological types of thyrotoxicosis: a population-based study

    Carlé, A., Knudsen, Nils Jakob, Pedersen, I. B., Perrild, Hans, Ovesen, L., Rasmussen, L. B. & Laurberg, P., 2013, In: European Journal of Endocrinology. 169, 5, p. 537-545 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    Graves' hyperthyroidism and moderate alcohol consumption: evidence for disease prevention

    Carlé, A., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L., Rasmussen, L. B., Jørgensen, T. & Laurberg, P. M., 2013, In: Clinical Endocrinology. 79, 1, p. 111–119

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. Published

    Selenium supplementation for patients with Graves’ hyperthyroidism (the GRASS trial): study protocol for a randomized controlled trial

    Watt, Torquil, Cramon, P., Bjorner, J. B., Bonnema, S. J., Feldt-Rasmussen, Ulla, Gluud, C., Gram, J., Hansen, J. L., Hegedüs, L., Knudsen, Nils Jakob, Bach-Mortensen, P., Nolsöe, R., Nygaard, Birte, Pociot, Flemming, Skoog, M., Winkel, P. & Rasmussen, A. K., 2013, In: Trials. 14, April , p. 1-10 10 p., 119.

    Research output: Contribution to journalJournal articleResearchpeer-review

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