学術雑誌論文 Incidence and Risk Factors for Infections Requiring Hospitalization, Including Pneumocystis Pneumonia, in Japanese Patients with Rheumatoid Arthritis

Hashimoto, Atsushi  ,  Suto, Shiori  ,  Horie, Kouichiro  ,  Fukuda, Hidefumi  ,  Nogi, Shinichi  ,  Iwata, Kanako  ,  Tsuno, Hirotaka  ,  Ogihara, Hideki  ,  Kawakami, Misato  ,  Komiya, Akiko  ,  Furukawa, Hiroshi  ,  Matsui, Toshihiro  ,  Tohma, Shigeto

2017pp.1 - 8 , 2017-10 , Hindawi
ISSN:1687-9260
内容記述
Objective. Rheumatoid arthritis (RA) may be complicated by different infections, but risk factors for these are not fully elucidated. Here, we assessed the incidence of and risk factors for infections requiring hospitalization (IRH) including pneumocystis pneumonia (PCP) in patients with RA. Methods. We retrospectively surveyed all RA patients treated at our hospital from 2009 to 2013, for whom data were available on demographic features, medications, comorbidities, and severity of RA. Multivariate logistic regression analysis was applied to calculate adjusted odds ratios (ORs) for factors associated with the occurrence of IRH. Results. In a total of 9210 patient-years (2688 patients), there were 373 IRH (3.7/100 patient-years). Respiratory tract infections were most frequent (, and additionally 16 PCP), followed by urinary tract infections (). Significant factors for PCP included higher age (≥70 years; OR 3.5), male sex (6.6), underlying lung disease (3.0), use of corticosteroids (4.8), and use of biologics (5.4). Use of methotrexate (5.7) was positively associated with PCP but negatively with total infections (0.7). Additionally, functional disorders and higher RA disease activity were also related to total infections. Conclusions. Risk factors for infection should be taken into account when deciding treatment for the individual RA patient.
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