THE FU-PLOT - A GRAPHICAL-METHOD FOR VISUALIZING THE TIMING OF FOLLOW-UP IN LONGITUDINAL-STUDIES

被引：5

作者：

LESSER, ML ^{[1
]}

KOHN, NE ^{[1
]}

NAPOLITANO, BA ^{[1
]}

PAHWA, S ^{[1
]}

机构：

[1] N SHORE UNIV HOSP,CORNELL UNIV MED COLL,DEPT PEDIAT,DIV IMMUNOL,MANHASSET,NY 11030

来源：

AMERICAN STATISTICIAN | 1995年 / 49卷 / 02期

关键词：

CLINICAL TRIALS; FOLLOW-UP; GRAPHICS; LONGITUDINAL STUDIES;

D O I：

10.2307/2684627

中图分类号：

O21 [概率论与数理统计]; C8 [统计学];

学科分类号：

020208 ; 070103 ; 0714 ;

摘要：

Many clinical studies require the longitudinal collection of data over time. As data collection may not be uniformly collected on each patient (e.g., blood tests may be performed regularly in some patients and sporadically in others), it is important to understand the frequency and patterns of data collection events over time so that statistical analyses can be planned. We demonstrate the use of a graphical technique, the FU-PLOT (short for Follow-Up PLOT), that can assist research investigators and statisticians in visualizing the frequency and patterns of follow-up data collection. Examples are from a longitudinal study of children born to mothers infected with the human immunodeficiency virus (HIV). The method can be adapted to a variety of situations, and is easily programmed in most graphics, spreadsheet, and statistical packages.

引用

页码：139 / 143

页数：5