Epidemiology. 1998 Jan; 9(1): 92-4

Combined risk estimates for two German population-based case-control studies on residential magnetic fields and childhood acute leukemia.

Michaelis-J; Schuz-J; Meinert-R; Zemann-E; Grigat-JP; Kaatsch-P; Kaletsch-U; Miesner-A; Brinkmann-K; Kalkner-W; Karner-H

Institut fur Medizinische Statistik und Dokumentation, Johannes Gutenberg-University of Mainz, Germany.

From 1992 to 1996, we obtained electromagnetic field measurements in two population-based case-control studies on childhood leukemia in the northwestern part of Germany and in Berlin. Exposure assessment comprised residential 24-hour measurements and short-term measurements. We obtained 24-hour measurements for a total of 176 cases and 414 controls. We compared subjects exposed to median 24-hour measurements of 0.2 microT or more with those exposed to lower amounts. Multivariate regression analysis revealed an odds ratio of 2.3 (95% confidence interval = 0.8-6.7).



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