Nils Jakob Knudsen

Nils Jakob Knudsen

Clinical Associate Professor

Member of:

  • Internal Medicine: Endocrinology


  1. 2008
  2. Published

    Iodine intake before and after mandatory iodization in Denmark: results from the Danish investigation of iodine intake and thyroid diseases (DanThyr) study.

    Rasmussen, L. B., Carlé, A., Jørgensen, T., Knudsen, Nils Jakob, Laurberg, P., Pedersen, I. B., Perrild, Hans, Vejbjerg, P. & Ovesen, Lars, 2008, In: British Journal of Nutrition. 100, 1, p. 166-173 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Smoking is negatively associated with the presence of thyroglobulin autoantibody and to a lesser degree with thyroid peroxidase autoantibody in serum: a population study

    Pedersen, I. B., Laurberg, P., Knudsen, Nils Jakob, Jørgensen, T., Perrild, Hans, Ovesen, L. & Rasmussen, L. B., 2008, In: European Journal of Endocrinology. 158, 3, p. 367-73 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    The impact of smoking on thyroid volume and function in relation to a shift towards iodine sufficiency

    Vejbjerg, P., Knudsen, Nils Jakob, Perrild, Hans, Carlé, A., Laurberg, P., Pedersen, I. B., Rasmussen, L. B., Ovesen, Lars & Jørgensen, T., 2008, In: European Journal of Epidemiology. 23, 6, p. 423-9 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. 2009
  6. Published

    Association of iodine fortification with incident use of antithyroid medication--a Danish Nationwide Study

    Cerqueira, C., Knudsen, Nils Jakob, Ovesen, Lars, Perrild, Hans, Rasmussen, L. B., Laurberg, P. & Jørgensen, T., 2009, In: Journal of Clinical Endocrinology and Metabolism. 94, 7, p. 2400-5 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. Published

    Lower prevalence of mild hyperthyroidism related to a higher iodine intake in the population: prospective study of a mandatory iodization programme

    Vejbjerg, P., Knudsen, Nils Jakob, Perrild, Hans, Laurberg, P., Carlé, A., Pedersen, I. B., Rasmussen, L. B., Ovesen, Lars & Jørgensen, T., 2009, In: Clinical Endocrinology. 71, 3, p. 440-5 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    Mainly the younger hypothyroid patients are referred to hospital--evidence for referral bias

    Carlé, A., Laurberg, P., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L., Rasmussen, L. B. & Jørgensen, T., 2009, In: Journal of Clinical Epidemiology. 62, 4, p. 446-451 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. Published

    Thyroglobulin as a marker of iodine nutrition status in the general population

    Vejbjerg, P., Knudsen, Nils Jakob, Perrild, Hans, Laurberg, P., Carlé, A., Pedersen, I. B., Rasmussen, L. B., Ovesen, Lars & Jørgensen, T., 2009, In: European Journal of Endocrinology. 161, 3, p. 475-81 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Thyroid volume in hypothyroidism due to autoimmune disease follows a unimodal distribution: evidence against primary thyroid atrophy and autoimmune thyroiditis being distinct diseases

    Carlé, A., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L., Jørgensen, T., Laurberg, P., Carlé, A., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, H., Ovesen, L., Jørgensen, T. & Laurberg, P., 1 Mar 2009, In: Journal of Clinical Endocrinology and Metabolism. 94, 3, p. 833-9 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Estimation of iodine intake from various urinary iodine measurements in population studies

    Vejbjerg, P., Knudsen, Nils Jakob, Perrild, Hans, Laurberg, P., Andersen, S., Rasmussen, L. B., Ovesen, Lars, Jørgensen, T., Vejbjerg, P., Knudsen, Nils Jakob, Perrild, H., Laurberg, P., Andersen, S., Rasmussen, L. B., Ovesen, L. & Jørgensen, T., 1 Nov 2009, In: Thyroid. 19, 11, p. 1281-6 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. 2010
  13. Published

    Nationwide trends in surgery and radioiodine treatment for benign thyroid disease during iodization of salt

    Cerqueira, C., Knudsen, Nils Jakob, Ovesen, Lars, Laurberg, P., Perrild, Hans, Rasmussen, L. B. & Jørgensen, T., 1 Apr 2010, In: European Journal of Endocrinology. 162, 4, p. 755-62 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    Abdominal fedme og fedmerelaterede sygdomme hos patienter i almen praksis

    Haugan, K., Rost, D., Knudsen, Nils Jakob & Breum, L., 24 May 2010, In: Ugeskrift for Laeger. 172, 21, p. 1586-1591 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. 2011
  16. Published

    Dansk jodberigelse af salt og forekomst af thyroideasygdom

    Laurberg, P., Jørgensen, T., Ovesen, L., Rasmussen, L. B., Perrild, Hans, Andersen, S., Carlé, A., Cerqueira, C., Knudsen, Nils Jakob, Pedersen, I. B. & Vejberg, P., 2011, In: Ugeskrift for Laeger. 173, 50, p. 3264-70 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Doubling in the use of thyroid hormone replacement therapy in Denmark: association to iodization of salt?

    Cerqueira, C., Knudsen, Nils Jakob, Ovesen, L., Laurberg, P., Perrild, H., Rasmussen, L. B. & Jørgensen, T., 2011, In: European Journal of Epidemiology. 26, 8, p. 629-35 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Epidemiology of subtypes of hyperthyroidism in Denmark: a population-based study

    Carlé, A., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L., Rasmussen, L. B. & Laurberg, P., 2011, In: European Journal of Endocrinology. 164, 5, p. 801-9 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Stagnation in body mass index in Denmark from 1997/1998 to 2004/2005, but with geographical diversity

    Svendstrup, M., Knudsen, Nils Jakob, Jørgensen, T., Rasmussen, L. B., Ovesen, L., Perrild, H. & Laurberg, P., 2011, In: Danish Medical Bulletin (Online). 58, 12, p. A4344

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    A cautious iodization program bringing iodine intake to a low recommended level is associated with an increase in the prevalence of thyroid autoantibodies in the population

    Pedersen, I. B., Knudsen, Nils Jakob, Carlé, A., Vejbjerg, P., Jørgensen, T., Perrild, Hans, Ovesen, Lars, Rasmussen, L. B. & Laurberg, P., 15 Feb 2011, In: Clinical Endocrinology. 75, 1, p. 120-126

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. 2012
  22. Published

    Moderate alcohol consumption may protect against overt autoimmune hypothyroidism: a population-based case-control study

    Carlé, A., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L., Rasmussen, L. B., Jørgensen, T. & Laurberg, P., 2012, In: European Journal of Endocrinology. 167, 4, p. 483-90 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Smoking cessation is followed by a sharp but transient rise in the incidence of overt autoimmune hypothyroidism - A population-based case-control study

    Carlé, A., Pedersen, I. B., Knudsen, Nils Jakob, Perrild, Hans, Ovesen, L., Rasmussen, L. B., Jørgensen, T. & Laurberg, P., 2012, In: Clinical Endocrinology. 77, 5, p. 764–772

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. 2013
  25. 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

  26. 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

  27. 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

  28. Published

    Serum selenium is low in newly diagnosed Graves’ disease: a population-based study

    Bülow Pedersen, I., Knudsen, Nils Jakob, Carlé, A., Schomburg, L., Köhrle, J., Jørgensen, T., Rasmussen, L. B., Ovesen, L. & Laurberg, P. M., 2013, In: Clinical Endocrinology. 79, 4, p. 584-590 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. 2014
  30. 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

  31. 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

  32. 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

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ID: 986780