Sample size estimation using nomogram in dental research

Kim,  Ki-Yeol

J Korean Dent Assoc > Volume 54(8); 2016 > Article

The Journal of The Korean Dental Association 2016;54(8):630-638.
Published online August 31, 2016.

치의학 연구에서 노모그램을 이용한 표본수 계산

김기열

연세대학교 치과대학 BK²¹ 플러스 통합구강생명과학 사업단, 치의학 교육개발실

Sample size estimation using nomogram in dental research

Ki-Yeol Kim

BK21 PLUS Project, Institute for Dental Education, Yonsei University College of Dentistry

Abstract

The appropriate sample size calculation in dental research is important to achieve the study purpose at the first step in study design. However, it cannot be easy to calculate sample size using standard formulas, because the several factors must be considered for calculation. This study introduced the graphic method for sample size calculation, which is called nomogram. The purpose of this study is to show the effectiveness of the nomogram using examples, expecting the researchers can easily use nomogram for sample size determination.

Key Words: sample size;dental research;nomogram;