Prediction Model for Anemia After Bariatric Surgery

Prediction Model for Anemia After Bariatric Surgery

To develop and validate a prediction model for estimating the short and long-term risk of anemia after bariatric surgery.

This study aims to develop and validate a prediction model for estimating the probability of anemia for patients with obesity one, three, and five years after sleeve gastrectomy and Roux-en-Y gastric bypass, using preoperative clinical and laboratory data.

Inclusion Criteria:

• aged between 16-70 years;
• body mass index (BMI) ≥ 27.5 kg/m2;
• complete preoperative and follow-up data.

Exclusion Criteria:

• vegetarian;
• other bariatric procedures;
• renal failure at baseline;
• postoperative bleeding (it was defined as a drop in hemoglobin levels > 3 g/dL or a confirmed blood loss requiring treatment after surgery);
• incomplete preoperative and follow-up data.