Evaluation of cancer screening programs. Parallels with clinical trials
โ Scribed by Dr. Aristide Apostolides; Maureen Henderson
- Publisher
- John Wiley and Sons
- Year
- 1977
- Tongue
- English
- Weight
- 586 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0008-543X
No coin nor oath required. For personal study only.
โฆ Synopsis
The methodologic limitations of available observational evidence for the evaluation of ongoing cancer control programs is reviewed. The specific example of Control Programs for Cervical Cancer is chosen to illustrate these limitations. These limitations pertain to the special features of the natural history of this disease, to the types of data available as well as to problems in the interpretation of these data. Given the unacceptability of conducting a rigorous randomized clinical trial of an ongoing and accepted cancer control procedure, an alternative experimental approach is proposed. This approach consists in the random allocation of census tracts with a high risk population to either of two groups: 1) an experimental group in which active and repeated screening activities will attempt to reach virtually all susceptible women, 2) a comparable control group which will only benefit from regularly available services.
๐ SIMILAR VOLUMES
Phase I clinical trials are designed to identify an appropriate dose for experimentation in phase II and III studies. I present the results from a simulation study to evaluate the performance of nine phase I designs involving the standard design, the two-stage modified Storer's design, the two-stage
When evaluating the bene"t of detecting cancer by screening we try to answer the question, &what would a screen detected subject's outcome have been if his/her cancer had progressed to clinical detection'. By &outcome' we mean survival time, cancer size and stage, lead time e!ects and more. Because