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Ann Intern Med. 1994 Jan 1;120(1):35-9.

Incidence of cancer among men with the Felty syndrome.

Author information

1
National Cancer Institute, National Institutes of Health, Bethesda, Maryland.

Abstract

OBJECTIVE:

To estimate the incidence of cancer (especially lymphoproliferative malignancies) in patients with the Felty syndrome.

DESIGN:

A retrospective cohort study.

SETTING:

A computerized database of all discharge records for 1969 to 1990 from a Veterans Affairs hospital.

PATIENTS:

906 men with a discharge diagnosis of the Felty syndrome.

MEASUREMENTS:

Standardized incidence ratios (SIR) (ratios of observed-to-expected events) estimated the risk for specific cancers. Hospital records confirmed the diagnoses of the Felty syndrome and cancer.

RESULTS:

We observed a twofold increase in total cancer incidence (137 patients; SIR = 2.09; 95% CI, 1.8 to 2.5). The risk for non-Hodgkin lymphoma (19 patients; SIR = 12.8, CI, 7.7 to 20.0) was much greater than the twofold increase in risk for lymphoma generally reported for rheumatoid arthritis. The risk for leukemia was increased but only within 5 years of the first hospitalization for the Felty syndrome, (13 patients; SIR = 7.67; CI, 4.1 to 13.1).

CONCLUSION:

The increased risk for non-Hodgkin lymphoma after the Felty syndrome in our study is similar to the risk associated with the Sjögren syndrome and may reflect similar immunostimulatory mechanisms.

[Indexed for MEDLINE]

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