Following Up Nonrespondents to an Online Weight Management Intervention: Randomized Trial Comparing Mail versus Telephone

• Main Authors: Couper, Mick P (Author), Peytchev, Andy (Author), Strecher, Victor J (Author), Rothert, Kendra (Author), Anderson, Julia (Author)
• Format: Book
• Published: JMIR Publications, 2007-06-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Background Attrition, or dropout, is a problem faced by many online health interventions, potentially threatening the inferential value of online randomized controlled trials. Objective In the context of a randomized controlled trial of an online weight management intervention, where 85% of the base...