Abstract:
:In this paper, the authors present an objective system to evaluate interviewer performance for use in epidemiologic studies. With this quality control system, all study interviews are audio-taped, and a random sample of interviews are coded according to interviewer behaviors, such as whether the interviewer asked the questions exactly as written and used the probes appropriately. With the use of data obtained from a large case-control study of colon cancer, the authors observed that 94.2% of all questions were asked in the same manner by all interviewers and that 89.5% of all probing behaviors were appropriate. They show that questions that required additional interviewer behaviors were more likely to result in variation in response that can be attributed to the interviewer. These findings have implications for study design and interpretation of study results. From simulations, the authors have estimated the impact of uncorrected interviewer variability on study power and ability to detect disease associations. Uncorrected interviewer variability could decrease study power from 84% to 56%. From simulations, the authors observed that odds ratios could be biased downward from 1.8 to 1.3. These findings illustrate the importance of using a continuous quality control program in epidemiologic research.
journal_name
Am J Epidemioljournal_title
American journal of epidemiologyauthors
Edwards S,Slattery ML,Mori M,Berry TD,Caan BJ,Palmer P,Potter JDdoi
10.1093/oxfordjournals.aje.a117192subject
Has Abstractpub_date
1994-12-01 00:00:00pages
1020-8issue
11eissn
0002-9262issn
1476-6256journal_volume
140pub_type
杂志文章abstract::Epidemiology is the study of the causes and distributions of diseases in human populations so that we may identify ways to prevent and control disease. Although this definition broadly serves us well, I suggest that in recent decades, our discipline's robust interest in identifying causes has come at the expense of a ...
journal_title:American journal of epidemiology
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更新日期:2013-10-15 00:00:00
abstract::This study prospectively evaluated psychosocial as well as biologic, behavioral, and demographic factors in the development of duodenal ulcer. Baseline data were collected in 1963 on 8,458 Israeli men over age 40 years who had no history of duodenal ulcer. The subjects were followed for 5 years, and 254 reported the d...
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journal_title:American journal of epidemiology
pub_type: 杂志文章
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更新日期:1994-10-01 00:00:00
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更新日期:1986-03-01 00:00:00
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journal_title:American journal of epidemiology
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更新日期:1996-02-01 00:00:00
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更新日期:1990-06-01 00:00:00
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更新日期:1989-06-01 00:00:00
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更新日期:1983-08-01 00:00:00
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pub_type: 杂志文章,meta分析
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更新日期:2006-07-15 00:00:00
abstract::The world's population is aging rapidly. This study reports the burden of cancer in the oldest old (≥85 years) in Finland in 1953-2017 and estimates age-specific cancer rates in the old population (65-99 years) in 1988-2017. The Finnish Cancer Registry provided data on all cancer diagnoses, cancer deaths and other dea...
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