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Original Article
Volume 332:413-419 February 16, 1995 Number 7
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Concordance for Hodgkin's Disease in Identical Twins Suggesting Genetic Susceptibility to the Young-Adult Form of the Disease
Thomas M. Mack, M.D., Wendy Cozen, D.O., Darryl K. Shibata, M.D., Lawrence M. Weiss, M.D., Bharat N. Nathwani, M.D., Antonio M. Hernandez, M.D., Clive R. Taylor, M.D., Ann S. Hamilton, Ph.D., Dennis M. Deapen, Dr.P.H., and Edward B. Rappaport, M.P.H.

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ABSTRACT

Background Relatives of young adults with Hodgkin's disease are at increased risk of Hodgkin's disease, and lines of evidence implicate both inheritance and environment.

Methods We have identified and followed 432 sets of twins affected by Hodgkin's disease. The number of cases of Hodgkin's disease observed before the age of 50 years in the healthy monozygotic and dizygotic twins of the patients with Hodgkin's disease was compared with the number expected from national age-specific incidence rates.

Results None of the 187 pairs of dizygotic twins became concordant for Hodgkin's disease, whereas 10 of the 179 pairs of monozygotic twins did; in 5 of these pairs, the second case appeared after the original ascertainment. During the observation period, 0.1 (monozygotic) and 0.1 (dizygotic) cases in the unaffected twins were expected. Monozygotic twins of patients with Hodgkin's disease thus had a greatly increased risk (standardized incidence ratio, 99; 95 percent confidence interval, 48 to 182), whereas no increase in the risk for dizygotic twins of patients with Hodgkin's disease was observed.

Conclusions Genetic susceptibility underlies Hodgkin's disease in young adulthood.


Source Information

From the Departments of Preventive Medicine (T.M.M., W.C., A.S.H., D.M.D., E.B.R.) and Pathology (T.M.M., D.K.S., B.N.N., A.M.H, C.R.T.), University of Southern California School of Medicine, Los Angeles, and the Department of Pathology (L.M.W.), City of Hope Medical Center, Duarte, Calif.

Address reprint requests to Dr. Mack at 1420 San Pablo St., Los Angeles, CA 90033.

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Related Letters:

Genetic Predisposition to Hodgkin's Disease
Shpilberg O., Shahar A., Mack T. M., Cozen W.
Extract | Full Text  
N Engl J Med 1995; 333:64-65, Jul 6, 1995. Correspondence

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