A note on the catch‐up time method for estimating lead or sojourn time in prostate cancer screening
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چکیده
منابع مشابه
A 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...
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Estimating mean sojourn time and screening sensitivity using questionnaire data on time since previous screening.
OBJECTIVES Mean sojourn time (MST) and screening test sensitivity (STS), is usually estimated by Markov models using incidence data from the first screening round and the interval between screening examinations. However, several screening programmes do not have full registration of cancers submerging after screening, and increased use of opportunistic screening over time can raise questions reg...
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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...
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Background: Prostate specific antigen (PSA) is an important biomarker to monitor patients after treated with radiation therapy (RT). The aim of this study is to evaluate the relationship between the PSA data and prostate cancer recurrence using the joint modeling. Methods: This historical cohort study was performed on 422 prostate cancer patients. Inclusion criteria included: patients with loc...
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ژورنال
عنوان ژورنال: Statistics in Medicine
سال: 2013
ISSN: 0277-6715,1097-0258
DOI: 10.1002/sim.5750