Lead time associated with screening for prostate cancer
نویسندگان
چکیده
منابع مشابه
PSA Screening in Prostate Cancer
Introduction: Prostate cancer is one of the most common cancers in Iranian men. PSA(prostate specific antigen) screening is a controversial issue because PSA screening leads to diagnose of patients with low risk prostate cancer who not only do not benefit from treatment but also suffer from complication caused by treatment. On the other hand, without prostate cancer screening, the rate of meta...
متن کاملScreening for prostate cancer.
In the United States, prostate cancer will affect 1 man in 6 during his lifetime. Since the mid-1980s, screening with the prostate-specific antigen (PSA) blood test has more than doubled the risk of a prostate cancer diagnosis. A decrease in prostate cancer death rates has been observed since that time, but the relative contribution of PSA testing as opposed to other factors, such as improved t...
متن کاملScreening for prostate cancer.
Epidemiologically, screening is justified by the importance of the disease and the lack of prospects for primary prevention, but evidence from natural history is unhelpful since men are more likely to die with, rather than from, prostate cancer. The available screening tests do not always detect men whose lesions could result in future morbidity or mortality. Evidence is limited for the benefit...
متن کاملA note on the catch-up time method for estimating lead or sojourn time in prostate cancer screening
Models of cancer screening assume that cancers are detectable by screening before being diagnosed clinically through symptoms. The duration of this preclinical phase is called sojourn time, and it determines how much diagnosis might be advanced in time by the screening test (lead time). In the catch-up time method, mean sojourn time or lead time are estimated as the time needed for cumulative i...
متن کاملProstate-specific antigen screening for prostate cancer: benefits for patients with highly aggressive prostate cancer.
The PSA screening for 25 years in America is the biggest cohort study in a field of public health.27 We should realize not only the significance of the early diagnosis and treatment of PCa, but also the dramatic decrease in PCaMR from 2002 to 2008. The data from the IARC were especially noteworthy.Moreover, the patients with highly aggressive PCa, who account for more than 30% of all PCa patien...
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ژورنال
عنوان ژورنال: International Journal of Cancer
سال: 2003
ISSN: 0020-7136
DOI: 10.1002/ijc.11554