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 EN

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.