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Comparison of a phone vs. clinic approach to achieve 10% weight loss.
Donnelly JE, Smith BK, Dunn L, Mayo MM, Jacobsen DJ, Stewart EE, Gibson C, Sullivan, DK.
Int J Obes 2007;31:1270-1276
Objective: To compare the efficacy of a phone vs a traditional face-to-face clinic approach to achieve 10% weight loss and weight maintenance.
Design: Twenty-six week, randomized, controlled trial.
Subjects: Twenty-four men and 72 women, ages 25-68 years, with a body mass index (BMI) of 33.2 + 3.8.
Measurements: Weight loss at 12 weeks and weight maintenance at 26 weeks were the primary outcomes. Attendance, meal replacements (MRs), fruits/vegetables (F/V), and physical activity (PA) were measured weekly for process evaluation.
Results: Median weight loss (range) from baseline at 12 weeks was significantly different for phone at 10.6 kg (16.6) or 10.4% and clinic at 12.7 kg (19.9) or 13.7%, and both were significantly different when compared with the control group with a weight loss of 0.25 kg (5.6) or 0.24%. Median weight loss at 26 weeks was 12.8 kg (23.4) or 13.0% from baseline for the phone group and 12.5 kg (35.2) or 12.6% from baseline for the clinic group (P>0.05).
Conclusion: The median weight loss for both phone and clinic groups at 12 and 26 weeks exceeded the NHLBI guideline of 10% weight loss from baseline. The phone approach may be a viable option to the traditional weight management clinic for both service providers and participants.
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