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The Capital Region of Denmark - a part of Copenhagen University Hospital
  1. 2021
  2. Published

    Risk of harm in synthetic and biological intervention trials in patients with inflammatory arthritis: protocol for a metaepidemiological study focusing on contextual factors

    Malm, E., Nielsen, S. M., Berg, J., Ioannidis, J. P. A., Furst, D., Smolen, J. S., Taylor, P. C., Kristensen, L. E., Tarp, S., Ellingsen, T. & Christensen, R., 6 Sep 2021, In: BMJ Open. 11, 9, p. e049850 e049850.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    GRADE guidelines 32: GRADE offers guidance on choosing targets of GRADE certainty of evidence ratings

    Zeng, L., Brignardello-Petersen, R., Hultcrantz, M., Siemieniuk, R. A. C., Santesso, N., Traversy, G., Izcovich, A., Sadeghirad, B., Alexander, P. E., Devji, T., Rochwerg, B., Murad, M. H., Morgan, R., Christensen, R., Schünemann, H. J. & Guyatt, G. H., Sep 2021, In: Journal of Clinical Epidemiology. 137, p. 163-175 13 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. Published

    Safety and efficacy of faecal microbiota transplantation for active peripheral psoriatic arthritis: an exploratory randomised placebo-controlled trial

    Kragsnaes, M. S., Kjeldsen, J., Horn, H. C., Munk, H. L., Pedersen, J. K., Just, S. A., Ahlquist, P., Pedersen, F. M., de Wit, M., Möller, S., Andersen, V., Kristiansen, K., Kinggaard Holm, D., Holt, H. M., Christensen, R. & Ellingsen, T., Sep 2021, In: Annals of the Rheumatic Diseases. 80, 9, p. 1158-1167 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  5. Published

    Towards development of core domain sets for short term and long term studies of calcium pyrophosphate crystal deposition (CPPD) disease: A framework paper by the OMERACT CPPD working group

    Cai, K., Fuller, A., Zhang, Y., Hensey, O., Grossberg, D., Christensen, R., Shea, B., Singh, J. A., McCarthy, G. M., Rosenthal, A. K., Filippou, G., Taylor, W. J., Diaz-Torne, C., Stamp, L. K., Edwards, N. L., Pascart, T., Becce, F., Nielsen, S. M., Tugwell, P., Beaton, D., Abhishek, A., Tedeschi, S. K. & Dalbeth, N., Aug 2021, In: Seminars in Arthritis and Rheumatism. 51, 4, p. 946-950 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Placebo response and effect in randomized clinical trials: meta-research with focus on contextual effects

    Hafliðadóttir, S. H., Juhl, C. B., Nielsen, S. M., Henriksen, M., Harris, I. A., Bliddal, H. & Christensen, R., 26 Jul 2021, In: Trials. 22, 1, p. 493 493.

    Research output: Contribution to journalReviewResearchpeer-review

  7. Published

    Effectiveness of Mind-Body Intervention for Inflammatory Conditions: Results from a 26-Week Randomized, Non-Blinded, Parallel-Group Trial

    Nguyen, T. T., Jensen, C. G., Khoury, L., Deleuran, B., Blom, E. S., Breinholt, T., Christensen, R. & Skov, L., 14 Jul 2021, In: Journal of Clinical Medicine. 10, 14, 3107.

    Research output: Contribution to journalJournal articleResearchpeer-review

  8. Published

    EULAR recommendations for the reporting of ultrasound studies in rheumatic and musculoskeletal diseases (RMDs)

    Costantino, F., Carmona, L., Boers, M., Backhaus, M., Balint, P. V., Bruyn, G. A., Christensen, R., Conaghan, P. G., Ferreira, R. J. O., Garrido-Castro, J. L., Guillemin, F., Hammer, H. B., van der Heijde, D., Iagnocco, A., Kortekaas, M. C., Landewé, R. B., Mandl, P., Naredo, E., Schmidt, W. A., Terslev, L., Terwee, C. B., Thiele, R. & D'Agostino, M-A., Jul 2021, In: Annals of the Rheumatic Diseases. 80, 7, p. 840-847 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  9. E-pub ahead of print
  10. Published

    Effect Modifiers and Statistical Tests for Interaction in Randomized Trials

    Christensen, R., Bours, M. J. L. & Nielsen, S. M., Jun 2021, In: Journal of Clinical Epidemiology. 134, p. 174-177 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    Endorsement of the OMERACT core domain set for shared decision making interventions in rheumatology trials: Results from a multi-stepped consensus-building approach

    Toupin-April, K., Décary, S., de Wit, M., Meara, A., Barton, J. L., Fraenkel, L., Li, L. C., Brooks, P., Shea, B., Stacey, D., Légaré, F., Lydiatt, A., Hofstetter, C., Proulx, L., Christensen, R., Voshaar, M., Suarez-Almazor, M. E., Boonen, A., Meade, T., March, L., Jull, J. E., Campbell, W., Alten, R., Morgan, E. M., Kelly, A., Kaufman, J., Hill, S., Maxwell, L. J., Guillemin, F., Beaton, D., El-Miedany, Y., Mittoo, S., Westrich Robertson, T., Bartlett, S. J., Singh, J. A., Mannion, M., Nasef, S. I., de Souza, S., Boel, A., Adebajo, A., Arnaud, L., Gill, T. K., Moholt, E., Burt, J., Jayatilleke, A., Hmamouchi, I., Carrott, D., Blanco, F. J., Mather, K., Maharaj, A., Sharma, S., Caso, F., Fong, C., Fernandez, A. P., Mackie, S., Nikiphorou, E., Jones, A., Greer-Smith, R., Sloan, V. S., Akpabio, A., Strand, V., Umaefulam, V., Monti, S., Melburn, C., Abaza, N., Schultz, K., Stones, S., Kiwalkar, S., Srinivasalu, H., Constien, D., King, L. K. & Tugwell, P., Jun 2021, In: Seminars in Arthritis and Rheumatism. 51, 3, p. 593-600 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Experience and impact of crystal pyrophosphate deposition (CPPD) from a patient and caregiver perspective: A qualitative exploration from the OMERACT CPPD working group

    Fuller, A., Cai, K., Filippou, G., Pascart, T., Diaz-Torne, C., Hensey, O., Grossberg, D., Christensen, R., Shea, B., Singh, J. A., Tedeschi, S. K., Dalbeth, N. & Abhishek, A., Jun 2021, In: Seminars in Arthritis and Rheumatism. 51, 3, p. 655-660 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Harms reported by patients in rheumatology drug trials: a systematic review of randomized trials in the cochrane library from an OMERACT working group

    OMERACT Safety Working Group, Jun 2021, In: Seminars in Arthritis and Rheumatism. 51, 3, p. 607-617 11 p.

    Research output: Contribution to journalReviewResearchpeer-review

  14. Published

    Instruments Measuring Physical Function for Psoriatic Arthritis Endorsed at GRAPPA 2020 Annual Meeting: Updates of the GRAPPA-OMERACT Working Group

    Leung, Y. Y., Orbai, A-M., Tillett, W., Ogdie, A., Eder, L., Goel, N., Hojgaard, P., Holland, R., Mathew, A. J., Lindsay, C. A., Antony, A., Chau, J., Christensen, R., Coates, L. C., Mease, P. J., Strand, V., FitzGerald, O., de Wit, M., Duffin, K. C. & Gladman, D. D., Jun 2021, In: The Journal of rheumatology. Supplement. 97, p. 60-63 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  15. Published

    OMERACT consensus-based operational definition of contextual factors in rheumatology clinical trials: A mixed methods study

    Nielsen, S. M., Boers, M., de Wit, M., Shea, B., van der Windt, D. A., Reeves, B. C., Beaton, D., Alten, R., Toupin April, K., Boonen, A., Escorpizo, R., Flurey, C., Furst, D. E., Guillemin, F., Leong, A., Pohl, C., Rasmussen, M. U., Singh, J. A., Smolen, J. S., Strand, V., Verstappen, S. M. M., Voshaar, M., Woodworth, T. G., Ellingsen, T., March, L., Wells, G. A., Tugwell, P. & Christensen, R., Jun 2021, In: Seminars in Arthritis and Rheumatism. 51, 3, p. 601-606 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. Published

    Outcome domains reported by patients, caregivers, healthcare professionals and stakeholders for calcium pyrophosphate deposition (CPPD): A content analysis based on semi-structured qualitative interviews from the OMERACT CPPD working group

    Fuller, A., Cai, K., Diaz-Torne, C., Filippou, G., Pascart, T., Hensey, O., Grossberg, D., Christensen, R., Shea, B., Singh, J. A., Tedeschi, S. K., Dalbeth, N. & Abhishek, A., Jun 2021, In: Seminars in Arthritis and Rheumatism. 51, 3, p. 650-654 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  17. Published

    Outcomes Reported in Prospective Long-Term Observational Studies and Registries of Patients With Rheumatoid Arthritis Worldwide: An Outcome Measures in Rheumatology Systematic Review

    Lopez-Olivo, M. A., Zogala, R. J., des Bordes, J., Zamora, N. V., Christensen, R., Rai, D., Goel, N., Carmona, L., Pratt, G., Strand, V. & Suarez-Almazor, M. E., May 2021, In: Arthritis Care & Research. 73, 5, p. 649-657 9 p.

    Research output: Contribution to journalReviewResearchpeer-review

  18. Published

    Effectiveness of interdisciplinary combined dermatology-gastroenterology-rheumatology clinical care compared to usual care in patients with immune-mediated inflammatory diseases: a parallel group, non-blinded, pragmatic randomised trial

    Hjuler, K. F., Dige, A., Agnholt, J., Laurberg, T. B., Loft, A. G., Møller, L. F., Christensen, R. & Iversen, L., 28 Apr 2021, In: BMJ Open. 11, 4, p. e041871 e041871.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published
  20. Published

    The Prognostic Value of Pain Phenotyping in Relation to Treatment Outcomes in Patients with Axial Spondyloarthritis Treated in Clinical Practice: A Prospective Cohort Study

    Andreasen, R. A., Kristensen, L. E., Egstrup, K., Baraliakos, X., Strand, V., Horn, H. C., Wied, J., Schiøttz-Christensen, B., Aalykke, C., Jensen Hansen, I. M., Ellingsen, T. & Christensen, R., 1 Apr 2021, In: Journal of Clinical Medicine. 10, 7, 1469.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. Published

    Measurement properties of radiographic outcome measures in Psoriatic Arthritis: A systematic review from the GRAPPA-OMERACT initiative

    Antony, A., Holland, R., D'Agostino, M-A., Maksymowych, W. P., Bertheussen, H., Schick, L., Goel, N., Ogdie, A., Orbai, A-M., Højgaard, P., Coates, L. C., Strand, V., Gladman, D. D., Christensen, R., Leung, Y. Y., Mease, P. & Tillett, W., Apr 2021, In: Seminars in Arthritis and Rheumatism. 51, 2, p. 367-386 20 p.

    Research output: Contribution to journalReviewResearchpeer-review

  22. Published
  23. Published

    Effectiveness of Transdiagnostic Cognitive-Behavioral Psychotherapy Compared With Management as Usual for Youth With Common Mental Health Problems: A Randomized Clinical Trial

    Jeppesen, P., Wolf, R. T., Nielsen, S. M., Christensen, R., Plessen, K. J., Bilenberg, N., Thomsen, P. H., Thastum, M., Neumer, S-P., Puggaard, L. B., Pedersen, M. M. A., Pagsberg, A. K., Silverman, W. K. & Correll, C. U., 1 Mar 2021, In: JAMA Psychiatry. 78, 3, p. 250-260 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Similar lipid level changes in early rheumatoid arthritis patients following 1-year treat-to-target strategy with adalimumab plus methotrexate versus placebo plus methotrexate: secondary analyses from the randomised controlled OPERA trial

    Mašić, D., Stengaard-Pedersen, K., Løgstrup, B. B., Hørslev-Petersen, K., Hetland, M. L., Junker, P., Østergaard, M., Ammitzbøll, C., Möller, S., Christensen, R. & Ellingsen, T., Mar 2021, In: Rheumatology International. 41, 3, p. 543-549 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. Published
  26. Published
  27. Published

    Towards consensus in defining and handling contextual factors within rheumatology trials: an initial qualitative study from an OMERACT working group

    Nielsen, S. M., Uggen Rasmussen, M., Boers, M., A van der Windt, D., de Wit, M., G Woodworth, T., A Flurey, C., Beaton, D., Shea, B., Escorpizo, R., Furst, D. E., Smolen, J. S., Toupin-April, K., Boonen, A., Voshaar, M., Ellingsen, T., Wells, G. A., Reeves, B. C., March, L., Tugwell, P. & Christensen, R., Feb 2021, In: Annals of the Rheumatic Diseases. 80, 2, p. 242-249 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published
  29. Published

    Appraisal of Candidate Instruments for Assessment of the Physical Function Domain in Patients with Psoriatic Arthritis

    Leung, Y. Y., Orbai, A-M., Ogdie, A., Hojgaard, P., Holland, R., Goel, N., Chau, J., Coates, L. C., Strand, V., Gladman, D. D., Mease, P. J., Christensen, R. & Tillett, W., 1 Jan 2021, In: Journal of Rheumatology. 48, 1, p. 58-66 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  30. Published

    Evidence-Based Research Series-Paper 1: What Evidence-Based Research is and why is it important?

    Robinson, K. A., Brunnhuber, K., Ciliska, D., Juhl, C. B., Christensen, R. & Lund, H., Jan 2021, In: Journal of Clinical Epidemiology. 129, p. 151-157 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. Published

    Evidence-Based Research Series-Paper 2: Using an Evidence-Based Research approach before a new study is conducted to ensure value

    Evidence-Based Research Network, Jan 2021, In: Journal of Clinical Epidemiology. 129, p. 158-166 9 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. Published

    Evidence-Based Research Series-Paper 3: Using an Evidence-Based Research approach to place your results into context after the study is performed to ensure usefulness of the conclusion

    Evidence-Based Research Network, Jan 2021, In: Journal of Clinical Epidemiology. 129, p. 167-171 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published
  34. Published

    Real-life drug persistence in patients with rheumatic diseases treated with CT-P13: a prospective observational cohort study (PERSIST)

    Taylor, P. C., Christensen, R., Moosavi, S., Selema, P., Guilatco, R., Fowler, H., Mueller, M., Liau, K. F. & Haraoui, B., 2021, In: Rheumatology Advances in Practice. 5, 2, p. rkab026

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. 2020
  36. Published

    Glucocorticoid-trials in rheumatoid arthritis mostly study representative real-world patients: A systematic review and meta-analysis

    Palmowski, A., Nielsen, S. M., Buttgereit, T., Palmowski, Y., Boers, M., Christensen, R. & Buttgereit, F., Dec 2020, In: Seminars in Arthritis and Rheumatism. 50, 6, p. 1400-1405 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    Use and reporting of outcome measures in randomized trials for anti-neutrophil cytoplasmic antibody-associated vasculitis: a systematic literature review

    Monti, S., Quinn, K. A., Christensen, R., Jayne, D., Langford, C., Lanier, G. E., Mahr, A., Pagnoux, C., Viðarsdóttir, M. B., Merkel, P. A. & Tomasson, G., Dec 2020, In: Seminars in Arthritis and Rheumatism. 50, 6, p. 1314-1325 12 p.

    Research output: Contribution to journalReviewResearchpeer-review

  38. Published
  39. Published
  40. E-pub ahead of print

    Sub-classification of Hidradenitis suppurativa: a cross-sectional study

    Thorlacius, L., Riis, P. T., List, E. K., Christensen, R. & Jemec, G. B. E., 21 Oct 2020, (E-pub ahead of print) In: Archives of Dermatological Research.

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    Scope of Outcomes in Trials and Observational Studies of Interventions Targeting Medication Adherence in Rheumatic Conditions: A Systematic Review

    Kelly, A., Crimston-Smith, L., Tong, A., Bartlett, S. J., Bekker, C. L., Christensen, R., De Vera, M. A., de Wit, M., Evans, V., Gill, M., March, L., Manera, K., Nieuwlaat, R., Salmasi, S., Scholte-Voshaar, M., Singh, J. A., Sumpton, D., Toupin-April, K., Tugwell, P., van den Bemt, B., Verstappen, S. & Tymms, K., 1 Oct 2020, In: Journal of Rheumatology. 47, 10, p. 1565-1574 10 p.

    Research output: Contribution to journalReviewResearchpeer-review

  42. Published

    Association Between Participant Retention and the Proportion of Included Elderly People in Rheumatology Trials: Results From a Series of Exploratory Meta-Regression Analyses

    Palmowski, A., Nielsen, S. M., Buttgereit, T., Palmowski, Y., Boers, M., Christensen, R. & Buttgereit, F., Oct 2020, In: Arthritis Care & Research. 72, 10, p. 1490-1496 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. Published

    Clinical trial discrimination of physical function instruments for psoriatic arthritis: A systematic review

    Leung, Y-Y., Holland, R., Mathew, A. J., Lindsay, C., Goel, N., Ogdie, A., Orbai, A-M., Hojgaard, P., Chau, J., Coates, L. C., Strand, V., Gladman, D. D., Christensen, R., Tillett, W. & Mease, P., Oct 2020, In: Seminars in Arthritis and Rheumatism. 50, 5, p. 1158-1181 24 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  44. Published

    Population characteristics as important contextual factors in rheumatological trials: an exploratory meta-epidemiological study from an OMERACT Working Group

    Nielsen, S. M., Storgaard, H., Ellingsen, T., Shea, B. J., Wells, G. A., Welch, V. A., Furst, D. E., de Wit, M., Voshaar, M., Juhl, C. B., Boers, M., Escorpizo, R., Woodworth, T. G., Boonen, A., Bliddal, H., March, L. M., Tugwell, P. & Christensen, R., Oct 2020, In: Annals of the Rheumatic Diseases. 79, 10, p. 1269-1276 8 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. Published

    Vascular ultrasound for the diagnosis of giant cell arteritis: a reliability and agreement study based on a standardised training programme

    Chrysidis, S., Terslev, L., Christensen, R., Fredberg, U., Larsen, K., Lorenzen, T., Døhn, U. M. & Diamantopoulos, A. P., Oct 2020, In: RMD Open. 6, 3, p. e001337 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  46. Published

    Outcome domains reported in calcium pyrophosphate deposition studies: A scoping review by the OMERACT CPPD working group

    Cai, K., Fuller, A., Hensey, O., Grossberg, D., Christensen, R., Shea, B., Singh, J. A., Abhishek, A., Tedeschi, S. & Dalbeth, N., Aug 2020, In: Seminars in Arthritis and Rheumatism. 50, 4, p. 719-727 9 p.

    Research output: Contribution to journalReviewResearchpeer-review

  47. Published

    Assessing the effect of interventions for axial spondyloarthritis according to the endorsed ASAS/OMERACT core outcome set: a meta-research study of trials included in Cochrane reviews

    Andreasen, R. A., Kristensen, L. E., Baraliakos, X., Strand, V., Mease, P. J., de Wit, M., Ellingsen, T., Hansen, I. M. J., Kirkham, J., Wells, G. A., Tugwell, P., Maxwell, L., Boers, M., Egstrup, K. & Christensen, R., 25 Jul 2020, In: Arthritis Research & Therapy. 22, 1, p. 177

    Research output: Contribution to journalReviewResearchpeer-review

  48. Published

    Antibiotic containing bone cement in prevention of hip and knee prosthetic joint infections: A systematic review and meta-analysis

    Sebastian, S., Liu, Y., Christensen, R., Raina, D. B., Tägil, M. & Lidgren, L., Jul 2020, In: Journal of orthopaedic translation. 23, p. 53-60 8 p.

    Research output: Contribution to journalReviewResearchpeer-review

  49. Published
  50. Published
  51. Published
  52. Published

    Patients with Rheumatoid Arthritis Acquire Sustainable Skills for Home Monitoring: A Prospective Dual-country Cohort Study (ELECTOR Clinical Trial I)

    Skougaard, M., Bliddal, H., Christensen, R., Ellegaard, K., Nielsen, S. M., Zavada, J., Oreska, S., Krogh, N. S., Holm, C. C., Hetland, M. L., Vencovsky, J., Røgind, H., Taylor, P. C. & Gudbergsen, H., 1 May 2020, In: Journal of Rheumatology. 47, 5, p. 658-667 10 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

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