Weight Loss Patterns and Outcomes Over 12 Months on a Commercial Weight Management Program (CSIRO Total Wellbeing...

Area of Science:

• Digital Health Interventions
• Weight Management Strategies
• Behavioral Science in Health

Background:

• Understanding the long-term effectiveness of digital self-management programs for weight loss is crucial.
• Existing research needs to further explore how these programs support sustained weight reduction.

Purpose of the Study:

• To analyze total weight loss and weight loss patterns in CSIRO Total Wellbeing Diet Online members over the first 12 months.
• To identify correlations between platform usage patterns and weight loss success.

Main Methods:

• A cohort of 24,035 Australian adults participating in the CSIRO Total Wellbeing Diet Online program was studied.
• Weight loss was calculated at 3, 6, 9, and 12 months using multiple imputation, all available data, and complete case analyses.
• Platform usage patterns were examined in relation to weight loss outcomes.

Main Results:

• The average estimated weight loss at 12 months was 5.5 kg (using multiple imputation).
• Over half of members (52.3%) achieved ≥5% body weight loss, and 24.4% achieved ≥10% body weight loss at 12 months.
• Higher weekly platform use (>30 times/week) was positively associated with total weight loss (r=0.287, P<.001).

Conclusions:

• The CSIRO Total Wellbeing Diet Online program demonstrated effectiveness, with 52.3% of members achieving clinically significant weight loss after one year.
• Increased engagement with the digital platform was linked to sustained weight loss and overall greater success.