Evaluation of the Design and Statistical Methods of Clinical Studies Published in Chinese Journal of Conservative Dentistry of 2002_Chinese Journal of Evidence-Based Medicine

Authors：

WANG Jian , SHI Zongdao

West China Stomatological College of Sichuan University; Sichuan; Chengdu 610041; China;

Corresponding author：

Keywords：

Research design; Statistical methods; Dentistry journal; Evidence-based medicine

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Objective 　To evaluate the quality of clinical studies on dentistry from the Chinese Journals.
Methods 　Clinical studies in Chinese Journal of Conservative Dentistry of 2002 were searched. The quality of the clinical studies on assessment of treatments’ efficacy was evaluated.
Results 　Among 204 related studies from 12 issues, there were 93 (45.58%) restrospective intervention studies, 6 randomized controlled blinded trials (2.94%), 42 randomized trials without blindness (20.58%), 20 controlled trials without randomization (9.80%) and 25 clinical observational studies (12.25%). The statistical analysis showed that 20 studies were with inappropriate methods.
Conclusions 　It is necessary to improve the design and statistical analysis of clinical studies on stomatology in China to produce high-quality research evidence.

Citation： WANG Jian,SHI Zongdao. Evaluation of the Design and Statistical Methods of Clinical Studies Published in Chinese Journal of Conservative Dentistry of 2002. Chinese Journal of Evidence-Based Medicine, 2004, 04(7): 482-483. doi: Copy

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1. ［1］Shi ZD,Guo CL,Chen E,Zhang WL,Xia F,Chen L.Preliminary report on hand searching results of 15 Chinese dental journals from the earliest first volume of 1953 to the volumes of 2000[J].Chin J Evidence-based medicine,2003; 3(1):18-21.
2. 史宗道,郭春岚,陈娥,张闻阆,夏芳,陈蕾.1953～2000年十五种中文口腔医学杂志手检结果初步报告.中国循证医学杂志,2003; 3(1):18～21.
3. ［2］Jiang ZJ.The Resolution Of Medical Statistics[J].Hei Long Jiang Medical Journal,2003; 27(2):81-87.
4. 蒋知俭.关于医学统计学的解析[J].黑龙江医学,2003; 27(2):81～87.
5. ［3］Hu LP,Guo XH,Liu HG.Medical Statistics Is An Important Gist To Evaluate The Quality Of Medical Papers[J].Chin J Stomatol,2001; 36(3):229-232.
6. 胡良平,郭秀花,刘惠刚.医学统计学是评价医学科技论文质量优劣的重要依据[J].中华口腔医学杂志,2001; 36(3):229～232.
7. ［4］Shi ZD.Evidence-Based Stomatology-How to Study and Practise EBS[M].1st ed.Beijing,PMPH,2003;135-160.
8. 史宗道.循证口腔医学--如何学习和实践循证口腔医学[M].第1版.北京:人民卫生出版社,2003;135～160.
9. ［5］Wang JL.Clinical Epidemiology-Clinical Research Design and Evaluation[M].2nd ed.SSTP,2001;77-89.
10. 王家良.临床流行病学--临床科研设计、衡量与评价[M].第2版.上海:上海科学技术出版社,2001;77～89.

Chinese Journal of Evidence-Based Medicine

Evaluation of the Design and Statistical Methods of Clinical Studies Published in Chinese Journal of Conservative Dentistry of 2002

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