Combined risk estimates for two German population-based case-control studies on residential magnetic fields and childhood acute leukemia.
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).
Michaelis
J
J
Institut für Medizinische Statistik und Dokumentation, Johannes Gutenberg-University of Mainz, Germany.
Schüz
J
J
Meinert
R
R
Zemann
E
E
Grigat
J P
JP
Kaatsch
P
P
Kaletsch
U
U
Miesner
A
A
Brinkmann
K
K
Kalkner
W
W
Kärner
H
H
D000208:Acute Disease; D016022:Case-Control Studies; D002648:Child; D004574:Electromagnetic Fields / Q000009:adverse effects; D004781:Environmental Exposure / Q000009:adverse effects; D005858:Germany / Q000453:epidemiology; D006801:Humans; D007938:Leukemia / Q000453:epidemiology* / Q000209:etiology