Tags

Type your tag names separated by a space and hit enter

Frequency of infection in patients with rheumatoid arthritis compared with controls: a population-based study.
Arthritis Rheum. 2002 Sep; 46(9):2287-93.AR

Abstract

OBJECTIVE

A high frequency of infections complicating rheumatoid arthritis (RA) has been described in reports of case series. This retrospective longitudinal cohort study was undertaken to compare the frequency of infections in a population-based incidence cohort of RA patients with that in a group of individuals without RA from the same population.

METHODS

RA patients included all members of an incidence cohort of Rochester, Minnesota residents ages >or=18 years who were first diagnosed as having RA between 1955 and 1994. One age- and sex-matched subject without RA was selected for each patient with RA. Study subjects were followed up by review of their entire medical record until death, migration from the area, or study end (January 1, 2000), and details of all documented infections, along with information on potential risk factors for infection, were recorded. Hazard ratios for infections were estimated using stratified Andersen-Gill proportional hazards models, with adjustment for potential confounders.

RESULTS

The 609 RA patients and 609 non-RA study subjects (mean age 58.0 years; 73.1% female) were followed up for a mean of 12.7 years and 15.0 years, respectively, reflecting higher mortality among the group with RA. Hazards ratios for objectively confirmed infections, infections requiring hospitalization, and any documented infection in patients with RA were 1.70 (95% confidence interval [95% CI] 1.42-2.03), 1.83 (95% CI 1.52-2.21), and 1.45 (95% CI 1.29-1.64), respectively, after adjustment for age, sex, smoking status, leukopenia, corticosteroid use, and diabetes mellitus. Sites of infection with the highest risk ratios were bone, joints, skin, soft tissues, and the respiratory tract.

CONCLUSION

In this study, patients with RA were at increased risk of developing infections compared with non-RA subjects. This may be due to immunomodulatory effects of RA, or to agents with immunosuppressive effects used in its treatment.

Authors+Show Affiliations

Mayo Clinic, Rochester, Minnesota 55905, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

12355475

Citation

Doran, Michele F., et al. "Frequency of Infection in Patients With Rheumatoid Arthritis Compared With Controls: a Population-based Study." Arthritis and Rheumatism, vol. 46, no. 9, 2002, pp. 2287-93.
Doran MF, Crowson CS, Pond GR, et al. Frequency of infection in patients with rheumatoid arthritis compared with controls: a population-based study. Arthritis Rheum. 2002;46(9):2287-93.
Doran, M. F., Crowson, C. S., Pond, G. R., O'Fallon, W. M., & Gabriel, S. E. (2002). Frequency of infection in patients with rheumatoid arthritis compared with controls: a population-based study. Arthritis and Rheumatism, 46(9), 2287-93.
Doran MF, et al. Frequency of Infection in Patients With Rheumatoid Arthritis Compared With Controls: a Population-based Study. Arthritis Rheum. 2002;46(9):2287-93. PubMed PMID: 12355475.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Frequency of infection in patients with rheumatoid arthritis compared with controls: a population-based study. AU - Doran,Michele F, AU - Crowson,Cynthia S, AU - Pond,Gregory R, AU - O'Fallon,W Michael, AU - Gabriel,Sherine E, PY - 2002/10/2/pubmed PY - 2002/11/26/medline PY - 2002/10/2/entrez SP - 2287 EP - 93 JF - Arthritis and rheumatism JO - Arthritis Rheum VL - 46 IS - 9 N2 - OBJECTIVE: A high frequency of infections complicating rheumatoid arthritis (RA) has been described in reports of case series. This retrospective longitudinal cohort study was undertaken to compare the frequency of infections in a population-based incidence cohort of RA patients with that in a group of individuals without RA from the same population. METHODS: RA patients included all members of an incidence cohort of Rochester, Minnesota residents ages >or=18 years who were first diagnosed as having RA between 1955 and 1994. One age- and sex-matched subject without RA was selected for each patient with RA. Study subjects were followed up by review of their entire medical record until death, migration from the area, or study end (January 1, 2000), and details of all documented infections, along with information on potential risk factors for infection, were recorded. Hazard ratios for infections were estimated using stratified Andersen-Gill proportional hazards models, with adjustment for potential confounders. RESULTS: The 609 RA patients and 609 non-RA study subjects (mean age 58.0 years; 73.1% female) were followed up for a mean of 12.7 years and 15.0 years, respectively, reflecting higher mortality among the group with RA. Hazards ratios for objectively confirmed infections, infections requiring hospitalization, and any documented infection in patients with RA were 1.70 (95% confidence interval [95% CI] 1.42-2.03), 1.83 (95% CI 1.52-2.21), and 1.45 (95% CI 1.29-1.64), respectively, after adjustment for age, sex, smoking status, leukopenia, corticosteroid use, and diabetes mellitus. Sites of infection with the highest risk ratios were bone, joints, skin, soft tissues, and the respiratory tract. CONCLUSION: In this study, patients with RA were at increased risk of developing infections compared with non-RA subjects. This may be due to immunomodulatory effects of RA, or to agents with immunosuppressive effects used in its treatment. SN - 0004-3591 UR - https://www.unboundmedicine.com/medline/citation/12355475/Frequency_of_infection_in_patients_with_rheumatoid_arthritis_compared_with_controls:_a_population_based_study_ L2 - https://doi.org/10.1002/art.10524 DB - PRIME DP - Unbound Medicine ER -