Search results
Results From The WOW.Com Content Network
Overdiagnosis is the diagnosis of disease that will never cause symptoms or death during a patient's ordinarily expected lifetime [1] and thus presents no practical threat regardless of being pathologic. Overdiagnosis is a side effect of screening for early forms of disease.
Overdiagnosis is the diagnosis of "disease" that will never cause symptoms or death during a patient's lifetime. [9] It is a problem because it turns people into patients unnecessarily and because it can lead to economic waste [10] (overutilization) and treatments that may cause harm. Overdiagnosis occurs when a disease is diagnosed correctly ...
The problem of overdiagnosis in cancer screening is that at the time of diagnosis it not possible to differentiate between a harmless lesion and lethal one, unless the patient is not treated and dies from other causes. [32] So almost all patients tend to be treated, leading to what is called overtreatment. As researchers Welch and Black put it ...
Overdiagnosis in this case occurs, for example, in patients with end-stage renal disease and a study recommend against cancer screening for such patients. [ 15 ] For older patients, discussing whether screening is appropriate based on their life expectancy can be uncomfortable for both doctor and patient.
Length time bias in cancer screening. Screening appears to lead to better survival even when actually no one lived any longer. Length time bias (or length bias) is an overestimation of survival duration due to the relative excess of cases detected that are asymptomatically slowly progressing, while fast progressing cases are detected after giving symptoms.
Lead time bias occurs if testing increases the perceived survival time without affecting the course of the disease. Lead time bias happens when survival time appears longer because diagnosis was done earlier (for instance, by screening), irrespective of whether the patient lived longer.
An incredible image buried deep in an annual military report released last month shows the U.S. Navy test-firing a high-powered laser weapon at a drone target from one of its warships.. The photo ...
The authors of this Cochrane review write: "If we assume that screening reduces breast cancer mortality by 15% and that overdiagnosis and over-treatment is at 30%, it means that for every 2,000 women invited for screening throughout 10 years, one will avoid dying of breast cancer and 10 healthy women, who would not have been diagnosed if there ...