Issues with using baseline in last observation carried forward analysis

被引:12
作者
Julious, Steven A. [1 ]
Mullee, Mark A. [2 ]
机构
[1] Univ Sheffield, Med Stat Grp, Sheffield S1 4DA, S Yorkshire, England
[2] Southampton Gen Hosp, Res & Dev Support Unit, Southampton, England
关键词
LOCF; baselines; missing data; imputation;
D O I
10.1002/pst.311
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
The topic of this paper was prompted by a study for which one of us was the statistician. It was submitted to Annals of Internal Medicine. The paper had positive reviewer comment; however, the statistical reviewer stated that for the analysis to be acceptable for publication, the missing data had to be accounted for in the analysis through the use of baseline in a last observation carried forward imputation. We discuss the issues associated with this form of imputation and recommend that it should not be undertaken as a primary analysis. Copyright (C) 2007 John Wiley & Sons, Ltd.
引用
收藏
页码:142 / 146
页数:5
相关论文
共 5 条
[1]  
[Anonymous], POINTS CONS MISS DAT
[2]   REPEATED MEASURES IN CLINICAL-TRIALS - ANALYSIS USING MEAN SUMMARY STATISTICS AND ITS IMPLICATIONS FOR DESIGN [J].
FRISON, L ;
POCOCK, SJ .
STATISTICS IN MEDICINE, 1992, 11 (13) :1685-1704
[3]   Tutorial in biostatistics - Sample sizes for clinical trials with normal data [J].
Julious, SA .
STATISTICS IN MEDICINE, 2004, 23 (12) :1921-1986
[4]  
LANE P, 2007, PHARM STAT
[5]   Effectiveness of primary care-based vestibular rehabilitation for chronic dizziness [J].
Yardley, L ;
Donovan-Hall, M ;
Smith, HE ;
Walsh, BM ;
Mullee, M ;
Bronstein, AM .
ANNALS OF INTERNAL MEDICINE, 2004, 141 (08) :598-605