© 1980 Oxford University Press
research-article |
Clustering of Hodgkin's Disease in Isreal; a Case-control Study





*Department of Social Medicine, Hebrew University-Hadassah Medical School P.O.B. 1172, Jerusalem, Israel
Drs Abramson and Goldblum are Established In-vestigators of the Chief Scientist's Bureau Ministry of Health, Israel
The Chanock Center for Virology, Hebrew University-Hadassah Medical School Jerusalem, Israel

Department of Pathology, Soroka Medical Center, Faculty of Health Sciences, Ben Gurion University of the Negev Beersheva, Israel
Abramson J H [Department of Social Medicine, Hebrew University, Hadassah Medical School, POB 1172, Jerusalem, Israel, Goldblum N, Avitzur M, Pridan H, Sacks M I and Peritz E. Clustering of Hodgkin's disease in Israel: a case-control study. International Journal of Epidemiology 1980, 9: 137144.
The geographical distribution of Jewish patients in Israel with HD diagnosed between 1960 and 1972 differed significantly from that of individually-matched population controls. Significant clustering occurred in 3 regions of the country. The odds ratio expressing the greater tendency of patients to have lived in one of these regions 5-9 years before the diagnosis, as compared with that of their paired controls, was 2.4. The association with residence in a higher-risk region was not significantly modified by sex, age, period of immigration, region of birth, father's region of birth, or date of diagnosis. The association was weaker for cases with nodular sclerosis than for those with other subtypes of HD. The clustering could not be explained by available data on the characteristics and prior experience of the cases and controls. There was a significant correlation between the risk of HD in a region and the proportion of native Israelis in its Jewish population, but there were no significant correlations with a variety of other demographic, natural and socioeconomic features of the regions. There was no significant time-space inter-action. The findings suggest that susceptible people living in certain parts of the country during the 1950's and 1960's had a somewhat enhanced risk of HD because of exposure to unidentified environmental factors active in those regions at that time.
Received 30 January 1980