study follow-up

Last reviewed 01/2018

Follow up

• it is important to consider the follow-up rate (the proportion of subjects originally entering the study for whom data are available at the end of the study) when appraising study results
• the power of the study will be diminished (and the results will be unreliable) if data are available on too few original subjects (e.g. <80%) (1,2)

Reference:

1. MeReC Briefing (2005);30:1-7.
2. Best Pract Res Clin Obstet Gynaecol. 2005;19(1):15-26.