Key result
SOPHIA tool forecasts 60-month postoperative weight within 0.6 kg of actual weight on average.
Why the study?
Estimation of post-bariatric surgery weight loss is important for clinical decisions, but existing predictive models lack accuracy and reliability.
Does the SOPHIA prediction tool accurately predict post-bariatric surgery weight loss in adults?
Population
178 adults who underwent bariatric surgery over a 3-year period
Comparison
Actual weights vs SOPHIA tool predicted weights
Design
Retrospective observational comparison study
Follow-up
5 years
Authors
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SOPHIA shows average calibration for post-bariatric weight at 5 years; hypothesis-generating and requires prospective validation before clinical use.
Observational (n=178)
Does the SOPHIA prediction tool accurately predict post-bariatric surgery weight loss in adults?
Mean Difference: 0.6
p-value: p=0.654
The SOPHIA prediction tool provides moderate predictive utility for post-bariatric surgery weight loss, with accuracy diminishing over time, highlighting the need for better personalized tools.
Sankar et al. (2025) conducted an observational in Obesity (n=178). SOPHIA bariatric weight trajectory prediction tool vs. Actual weight was evaluated on Mean difference between actual and predicted weight at 60 months (MD 0.6, p=0.654). The SOPHIA prediction tool forecasted postoperative weight with a mean difference of 0.6 kg compared to actual weight at 60 months (P=0.654) and a mean absolute deviation of 12.9 kg.
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