title: The Use of Telehealth Technology in Assessing the Accuracy of Self-Reported Weight and the Impact of a Daily Immediate-Feedback Intervention among Obese Employees.
abstract: Objective. To determine the accuracy of self-reported body weight prior to and following a weight loss intervention including daily self-weighing among obese employees. Methods. As part of a 6-month randomized controlled trial including a no-treatment control group, an intervention group received a series of coaching calls, daily self-weighing, and interactive telemonitoring. The primary outcome variable was the absolute discrepancy between self-reported and measured body weight at baseline and at 6 months. We used general linear mixed model regression to estimate changes and differences between study groups over time. Results. At baseline, study participants underreported their weight by an average of 2.06 (se = 0.33) lbs. The intervention group self-reported a smaller absolute body weight discrepancy at followup than the control group. Conclusions. The discrepancy between self-reported and measured body weight appears to be relatively small, may be improved through daily self-monitoring using immediate-feedback telehealth technology, and negligibly impacts change in body weight.
authors.affiliation: HealthPartners, Minneapolis, MN 55440-1309, USA.
authors.forename: Nicolaas P
authors.initials: NP
authors.lastname: Pronk
authors.forename: A Lauren
authors.initials: AL
authors.lastname: Crain
authors.forename: Jeffrey J
authors.initials: JJ
authors.lastname: Vanwormer
authors.forename: Brian C
authors.initials: BC
authors.lastname: Martinson
authors.forename: Jackie L
authors.initials: JL
authors.lastname: Boucher
authors.forename: Daniel L
authors.initials: DL
authors.lastname: Cosentino