Kevin Patrick|Fred Raab|Marc A. Adams|Lindsay Dillon|Marian Zabinski|Cheryl L. Rock|William G. Griswold|Gregory J. Norman
A Text Message–Based Intervention for Weight Loss: Randomized Controlled Trial
University of California, San Diego|University of California, San Diego|University of California, San Diego|San Diego State University|University of California, San Diego|University of California, San Diego|University of California, San Diego|University of California, San Diego|University of California, San Diego
knowledge studies evaluated whether weight loss promoted overweight adults use intervention largely based daily sms short message service text mms multimedia message service small picture messages transmitted via mobile phonesthis paper describes development evaluation text messagebased intervention designed help individuals lose maintain weight 4 monthsthe study randomized controlled trial participants exposed one following two conditions lasting 16 weeks 1 receipt monthly printed materials weight control 2 intervention included personalized sms mms messages sent two five times daily printed materials brief monthly phone calls health counselor primary outcome weight end intervention mixedmodel repeatedmeasures analysis compared effect intervention group comparison group weight status 4month intervention period analysis covariance ancova models examined weight change baseline 4 months adjusting baseline weight sex agea total 75 overweight men women randomized one two groups 65 signed consent form completed baseline questionnaire included analysis end 4 months intervention group n 33 lost weight comparison group 197 kg difference 95 ci 034 360 kg p 02 adjusting sex age intervention participants adjusted average weight loss 288 kg 316 end study 22 24 92 intervention participants stated would recommend intervention weight control friends familytext messages might prove productive channel communication promote behaviors support weight loss overweight adults