Document Detail

Obstetrics & Gynecology in 1996: marking the progress toward evidence-based medicine by classifying studies based on methodology.
MedLine Citation:
PMID:  9397124     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To test the hypothesis that researchers in obstetrics and gynecology favor an observational type of study design.
DATA SOURCES: The 12 regular issues of Obstetrics & Gynecology published during 1996 were analyzed.
METHOD OF STUDY SELECTION: All articles in the journal Obstetrics & Gynecology were reviewed for the year 1996, except that separate issues covering case reports, case condensations, and reviews were excluded.
TABULATION, INTEGRATION, AND RESULTS: Studies were classified as observational or experimental. Observational studies were subclassified as either descriptive, case-control, or cohort. Experimental studies were subclassified as either randomized controlled trial (RCT) or uncontrolled trial. Other study designs were noted. Of the 316 studies published during 1996, 241 (76%) were observational, 43 (14%) experimental, and 32 (10%) other. There were 162 (51%) descriptive studies, 44 (14%) case-control studies, 35 (11%) cohort studies, 35 (11%) RCTs, and eight (3%) uncontrolled trials.
CONCLUSION: Researchers who publish in Obstetrics & Gynecology favor an observational study design. With evidence-based medicine growing in popularity as a new standard or paradigm, the reliance on observational studies may have implications.
E F Funai
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Obstetrics and gynecology     Volume:  90     ISSN:  0029-7844     ISO Abbreviation:  Obstet Gynecol     Publication Date:  1997 Dec 
Date Detail:
Created Date:  1997-12-30     Completed Date:  1997-12-30     Revised Date:  2013-11-06    
Medline Journal Info:
Nlm Unique ID:  0401101     Medline TA:  Obstet Gynecol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1020-2     Citation Subset:  AIM; IM    
Division of Maternal-Fetal Medicine, NYU Medical Center, New York, USA.
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MeSH Terms
Evidence-Based Medicine*
Gynecology* / standards,  trends
Obstetrics* / standards,  trends
Periodicals as Topic
Research / classification*
Research Design* / standards*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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