Coleman E, Arundel C, Clark L, Doherty L, Gillies K, Hewitt C, Innes K, Parker A, Torgerson D, Treweek S (2021) - The James Lind Library The James Lind Library

Coleman E, Arundel C, Clark L, Doherty L, Gillies K, Hewitt C, Innes K, Parker A, Torgerson D, Treweek S (2021)

Bah humbug! Association between sending Christmas cards to trial participants and trial retention: randomised study within a trial conducted simultaneously across eight host trials. BMJ 375, e067742. https://www.bmj.com/content/375/bmj-2021-067742.long
Meta-analysis of a series of Studies Within a Trial (SWAT) testing the impact of Christmas cards on retention in randomised trials.

Key passage(s)

Whole article

Download the full article as a PDF

Coleman E, Arundel C, Clark L, Doherty L, Gillies K, Hewitt C, Innes K, Parker A, Torgerson D, Treweek S (2021). Bah humbug! Association between sending Christmas cards to trial participants and trial retention: randomised study within a trial conducted simultaneously across eight host trials. BMJ 375, e067742.

RELEVANT TOPICS

All topics

Website by Minervation Ltd, supported by the James Lind Initiative and the Presidential Fund of the Swiss National Science Foundation.