Funai E F
Division of Maternal-Fetal Medicine, NYU Medical Center, New York, USA.
Obstet Gynecol. 1997 Dec;90(6):1020-2. doi: 10.1016/s0029-7844(97)00488-2.
To test the hypothesis that researchers in obstetrics and gynecology favor an observational type of study design.
The 12 regular issues of Obstetrics & Gynecology published during 1996 were analyzed.
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.
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.
检验妇产科研究人员倾向于观察性研究设计这一假设。
分析了1996年出版的12期《妇产科学》杂志。
对1996年《妇产科学》杂志上的所有文章进行了审查，但不包括单独的病例报告、病例摘要和综述。
制表、整合及结果：研究分为观察性或实验性。观察性研究又细分为描述性、病例对照或队列研究。实验性研究细分为随机对照试验（RCT）或非对照试验。记录了其他研究设计。1996年发表的316项研究中，241项（76%）为观察性研究，43项（14%）为实验性研究，32项（10%）为其他类型。其中有162项（51%）描述性研究，44项（14%）病例对照研究，35项（11%）队列研究，35项（11%）随机对照试验，以及8项（3%）非对照试验。
在《妇产科学》杂志上发表文章的研究人员倾向于观察性研究设计。随着循证医学作为一种新的标准或范式越来越受欢迎，对观察性研究的依赖可能会产生影响。
