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Publication bias in gastroenterologi...

Timmer, Antje.

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Publication bias in gastroenterological research.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Publication bias in gastroenterological research./
Author:	Timmer, Antje.
Description:	115 p.
Notes:	Source: Masters Abstracts International, Volume: 37-06, page: 1813.
Contained By:	Masters Abstracts International37-06.
Subject:	Health Sciences, Medicine and Surgery. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MQ38615
ISBN:	0612386155

Publication bias in gastroenterological research.
Timmer, Antje.

Publication bias in gastroenterological research. - 115 p.

Source: Masters Abstracts International, Volume: 37-06, page: 1813.

Thesis (M.Sc.)--University of Calgary (Canada), 1999.

To assess whether publication bias is present in gastroenterological research, determinants of publication were studied in abstracts submitted to the American Gastroenterological Association. A random sample of 326 clinical trials (CCT), 455 abstracts on other clinical research (OCR) and 219 basic science reports (BSS) was evaluated. Publication rates were examined by a literature search and by a mail survey of abstract authors. Survey information was available on 499 abstracts. The overall estimated publication rate was 57%. A higher number of previous publications and multi-center status were associated with higher publication rates. Significant differences in publication of negative study results were identified only after correction for under-ascertainment and response bias. Statistically significant studies were published faster and in higher impact journals. The most frequent reason cited for non-publication was lack of time.

ISBN: 0612386155Subjects--Topical Terms:

1017756
Health Sciences, Medicine and Surgery.

Publication bias in gastroenterological research.
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100 1 $a Timmer, Antje. $3 1938709
245 1 0 $a Publication bias in gastroenterological research.
300 $a 115 p.
500 $a Source: Masters Abstracts International, Volume: 37-06, page: 1813.
500 $a Adviser: L. R. Sutherland.
502 $a Thesis (M.Sc.)--University of Calgary (Canada), 1999.
520 $a To assess whether publication bias is present in gastroenterological research, determinants of publication were studied in abstracts submitted to the American Gastroenterological Association. A random sample of 326 clinical trials (CCT), 455 abstracts on other clinical research (OCR) and 219 basic science reports (BSS) was evaluated. Publication rates were examined by a literature search and by a mail survey of abstract authors. Survey information was available on 499 abstracts. The overall estimated publication rate was 57%. A higher number of previous publications and multi-center status were associated with higher publication rates. Significant differences in publication of negative study results were identified only after correction for under-ascertainment and response bias. Statistically significant studies were published faster and in higher impact journals. The most frequent reason cited for non-publication was lack of time.
590 $a School code: 0026.
650 4 $a Health Sciences, Medicine and Surgery. $3 1017756
650 4 $a Library Science. $3 881164
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690 $a 0399
710 2 0 $a University of Calgary (Canada). $3 1017619
773 0 $t Masters Abstracts International $g 37-06.
790 1 0 $a Sutherland, L. R., $e advisor
790 $a 0026
791 $a M.Sc.
792 $a 1999
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MQ38615