Joachim Schüz

..As a result, observed differences in exposure levels between study populations may not reflect real exposure differences but may be in part, or wholly due to methodological differences...

..The aim of this study was to examine the feasibility of performing a cohort study on health risks from occupational exposure to radiofrequency electromagnetic fields (RF-EMF) in Germany...

..These results do not support the hypotheses that nighttime measures are more appropriate; hence, the observed association between ELF EMF and childhood leukemia still lacks a plausible explanation...

..However, there are important lessons to learn, either with respect to the etiology of childhood leukemia or with respect to the need for improving epidemiological methods for the identification of presumably weak associations...

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..We observed a relative risk of 1.40 (95% confidence interval; 0.86-2.16) for cancers diagnosed under the age 20 in 6192 offspring of 3431 mothers with a molar pregnancy, indicating it is not a major determinant of childhood cancer...

..In conclusion, no overall increased risk of glioma or meningioma was observed among these cellular phone users; however, for long-term cellular phone users, results need to be confirmed before firm conclusions can be drawn...

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..Identification of the factors that result in a healthy cohort might be of interest for elucidation of the etiology of these diseases...

..In conclusion, epidemiological studies conducted with appropriate diligence can play a key role in finding the answers...

..Studies on mobile phone use and leukaemia risk in adolescents and young adults may be indicated...

..No associations were seen for amyotrophic lateral sclerosis, multiple sclerosis or epilepsy in women...

..As long as adverse health effects cannot be ruled out with some degree of certainty, it appears to be appropriate to instruct children and their parents about a prudent use of MPs...

..The widespread use of cellular telephones has heightened concerns about possible adverse health effects. The objective of this study was to investigate cancer risk among Danish cellular telephone users who were followed for up to 21 years...

..These limitations can be minimized in prospective follow-up studies...

..Although the study was limited due to the small number of exposed subjects, it is still a first indication that residential low-level exposure to RF EMFs may not pose a higher risk of brain tumors...

..As a large number of subjects did not classify themselves as EH and reported very specific links between exposure and symptoms, they may provide a very distinct and interesting group for future research...

..To investigate the risk of tumours in the central nervous system among Danish mobile phone subscribers...

..The objective of this study was to investigate the association between medically or occupationally related exposure to ionising radiation and brain tumours...

..In a recent population-based case-control study using 2,400 cases of childhood cancer, we found a statistically significant association between residential radon and acute lymphoblastic leukemia risk...

..The relative 5-year survival after lung cancer was similarly low in most groups, 8% for men and 9% for women, except for groups of patients living in small apartments, with unknown tenure or schizophrenia and for divorced or single men...

..2% to 4.4%) among women. No change in incidence trends were observed from 1998 to 2003, the time when possible associations between mobile phone use and cancer risk would be informative about an induction period of 5-10 years...

..Thus, calculated RF-EMF is confirmed to be an appropriate exposure metric in large-scale epidemiological studies on broadcast transmitters...

..The evidence from epidemiological studies published to date have not been consistent and, in particular, further studies are required to identify whether longer term (well beyond 10 years) RF exposure might pose some health risk...

..22 million persons, yielding almost 26 million person-years and 147,973 cancers. In this paper, we provide a detailed description of the indicators and the statistical methods, and we discuss the strengths and limitations of our approach...

..Large geographical and temporal variations in the incidence rates of CNS tumors have been reported. Increasing incidence rates would be a public health concern, as they might indicate increased exposure to environmental risk factors...

..S. study. In all, the evidence is still based on small numbers, and a biological mechanism to explain the findings is not known...

..Our study shows that inequalities in cancer incidence and survival must be addressed in all aspects of public health, with interventions both to reduce incidence and to prolong survival...

..To update a study of risks for leukaemia, brain cancer and breast cancer in a Danish nationwide, population-based cohort of utility employees...

..In conclusion, spatial aggregation does not necessarily blur a clustering effect; this depends on the nature of clustering and the aggregated units...

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..The results of this prospective, population-based, nationwide study, which included a large number of long-term users of cellular telephones, do not support an association between cell phone use and risk of acoustic neuroma...

..65, 1.67) among children living within 2 km of the nearest broadcast transmitter compared with those living at a distance of 10-<15 km. The data did not show any elevated risks of childhood leukemia associated with RF-EMFs...

..Clear differences in mortality from all investigated causes of death were found between participants and non-participants, which persisted after up to 15 years of follow-up. Socioeconomic position had little effect on this result...

..However, because future case-control studies will at least partially rely on questionnaire data, improvements including probing questions, better interview techniques, and validation studies are indicated...

..The magnitude of the differences in incidence rates across the groups of different socioeconomic indicators suggests a high potential for earlier diagnosis of VS by improving the awareness of early symptoms...

..In conclusion, these data indicate a potential influence of some maternal medication during pregnancy on the risk of childhood cancer in the offspring; however, no clear picture is seen...

..The higher risk of infants with low Apgar score might reflect hypoxia causing cell damage, adverse side effects of neonatal treatment or reverse causation as low Apgar score might indicate the presence of a tumor...

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..The results of this study do not provide support for the hypothesis of an infectious or a spatial environmental etiology of childhood leukemia...

..The peak incidence of central nervous system (CNS) tumors in childhood indicates that intrauterine or neonatal characteristics are potential risk factors or symptoms of early onset of disease...

..The incidence of acute lymphoblastic leukemia increased with the calendar period until 1983, and with the birth cohort until 1980, but incidence has been stable thereafter...

..We tested the hypothesis that domestic radon exposure increases the risk for childhood cancer...

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..Since recently rate stabilization was suggested, we determined whether it is due to an increasing number of immigrants at lower risk for this cancer...

..Social inequality in the prognosis of most cancers was observed, with poorer relative survival related to fewer advantages, often most pronounced in the first year after diagnosis...

..These findings suggest an association between a single electric shock and increased risks for peripheral nerve diseases, migraines, vertigo, and epilepsy, but confirmation of these observations is needed...

..This deserves further attention, as does the increased long-term risk of MS among female subscribers, although small numbers and lack of consistency between genders prevent causal interpretation...

..Recall bias remains a concern, but sensitivity analysis provided some evidence that the protective effect is unlikely to be attributable to this bias in its entirety...

..There is some concern about potential health risks of cellular telephone use to children. We assessed data on how many children own a cellular telephone and on how often they use it in a population-based sample...

..To examine possible associations between socioeconomic position and surgical treatment of patients with early-stage non-small-cell lung cancer (NSCLC)...

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..These results suggest an inverse correlation between FGFR3 mutations and hypermethylation events, which may be used to improve noninvasive, DNA-based detection of bladder cancer...

..Therefore, the choice of a representative control group as well as the achievement of an excellent response rate are of prime importance...