PSA testing alone cannot fully explain drop in deaths from prostate cancer
...terns of treatment andtreatment-related deaths, or misclassification of cause of death. Etzioni's paper is one of three in this week's issue of the JNCI to address therole of PSA testing in reducing the prostate-cancer death rate. The others areby Drs. Benjamin Hankey and Eric Feuer of the National Cancer Institute, w...Dartmouth research examines the value of cancer screening
...hat cancer was detected by screening. This type of misclassification influences the disease-specific mortality results ... rather than to the disease being tested for. This misclassification tilts the disease-specific mortality results in favor of screening. Both forms of bias affected...Misclassification of death may influence perceived value of cancer screening
...s in the cause of death. To demonstrate that death misclassification may have occurred in past trials, William C. Black...ed as a result of the screening test. This form of misclassification biases the disease-specific mortality results in favor of screening. The analysis by Black and his ...Mexican Americans more likely to die of heart disease than Caucasians
... limited by potential biases. For example, ethnic misclassification may affect the reported number of deaths among Hispanics if ethnicity is coded incorrectly on the death certificate. Additionally, Hispanics who have immigrated to the United States but died in their country would not have been counted as deaths in ...Misclassification of cause of death in cancer patients
...thors note that there is a trend toward increasing misclassification among those cancers, such as breast and prostate, ... to cancer. "Although the estimated effect of this misclassification on overall cancer mortality is modest, it may be indicative of more widespread confusion about how t...M.I.N.D. Institute study confirms autism increase
...t be explained away by artificial factors, such as misclassification and criteria changes, according to the results of ... not autism did meet criteria for autism, but this misclassification does not appear to have changed over time. Because more than 90 percent of the children in the surv......stance to conventional chemotherapy and persistent misclassification of these tumours in clinical studies has made pre-2000 data difficult to interpret. However, it is now known that most GISTs contain a mutation in the KIT tyrosine kinase, which means they are an ideal target for imatinib. In their review, Heikki Joe...South Africa in denial over number of deaths from HIV/AIDS
...THE LANCET. A recent study attempting to quantify misclassification of HIV/AIDS deaths concluded that for the year 200001, the number of deaths related to HIV/AIDS was likely to be almost three times as high as that published in the Government's statistical report compiled from death certificates. The study suggests ...Multi-center study shows direct link between residential radon exposure and lung cancer
...n exposure," Field said, noting potential exposure misclassification resulting from the pooling techniques. Investigators are currently pooling the results from the North American and European studies. Simple, inexpensive do-it-yourself radon test kits are available at local hardware stores. EPA recommends that hous...