Case-Control Studies

Patients with seronegative RA have more inflammatory activity compared with patients with seropositive RA in an inception cohort of DMARD-naïve patients classified according to the 2010 ACR/EULAR criteria
OBJECTIVES: To compare the presentation of seropositive and seronegative early rheumatoid arthritis (RA) in disease-modifying …
Lena Bugge Nordberg, Siri Lillegraven, Elisabeth Lie, Anna-Birgitte Aga, Inge Christoffer Olsen, Hilde Berner Hammer, Till Uhlig, Maria Karolina Jonsson, Désirée van der Heijde, Tore K. Kvien, Espen Andre Haavardsholm, and the ARCTIC working group
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The association of hypertension with asymptomatic cardiovascular organ damage in rheumatoid arthritis
BACKGROUND: The association of hypertension with asymptomatic cardiovascular organ damage in patients with rheumatoid arthritis (RA) …
Helga Midtbø, Eva Gerdts, Tore K. Kvien, Inge C. Olsen, Mai Tone Lønnebakken, Einar Skulstad Davidsen, Silvia Rollefstad, Anne Grete Semb
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Genetic risk scores and number of autoantibodies in patients with rheumatoid arthritis
OBJECTIVE: Certain HLA-DRB1 alleles and single-nucleotide polymorphisms (SNPs) are associated with rheumatoid arthritis (RA). Our …
Marthe T. Maehlen, Inge C. Olsen, Bettina K. Andreassen, Marte K. Viken, Xia Jiang, Lars Alfredsson, Henrik Källberg, Boel Brynedal, Fina Kurreeman, Nina Daha, Rene Toes, Alexandra Zhernakova, Javier Gutierrez-Achury, Paul I. W. de Bakker, Javier Martin, María Teruel, Miguel A. Gonzalez-Gay, Luis Rodríguez-Rodríguez, Alejandro Balsa, Till Uhlig, Tore K. Kvien, Benedicte A. Lie
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Disease activity and left ventricular structure in patients with rheumatoid arthritis
OBJECTIVE: Increased left ventricular (LV) wall thickness/internal diameter ratio (relative wall thickness) was recently reported in RA …
Helga Midtbø, Eva Gerdts, Tore K. Kvien, Inge C. Olsen, Asle Hirth, Einar Skulstad Davidsen, Anne Grete Semb
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Circulating levels of inflammatory cytokines and cytokine receptors in patients with ankylosing spondylitis: a cross-sectional comparative study
OBJECTIVES: Insight into the most important inflammatory pathways in ankylosing spondylitis (AS) could be of importance in risk …
S. H. Sveaas, I. J. Berg, S. A. Provan, A. G. Semb, I. C. Olsen, T. Ueland, P. Aukrust, N. Vøllestad, K. B. Hagen, T. K. Kvien, H. Dagfinrud
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Associations between APOE genotypes and disease susceptibility, joint damage and lipid levels in patients with rheumatoid arthritis
OBJECTIVE: Apolipoprotein E (APOE) genotypes are associated with cardiovascular disease (CVD) and lipid levels. In rheumatoid arthritis …
Marthe T. Maehlen, Sella A. Provan, Diederik P. C. de Rooy, Annette H. M. van der Helm-van Mil, Annemarie Krabben, Tore Saxne, Elisabet Lindqvist, Anne Grete Semb, Till Uhlig, Désirée van der Heijde, Inger Lise Mero, Inge C. Olsen, Tore K. Kvien, Benedicte A. Lie
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