Sleeve Gastrectomy vs OAGB - Data Analysis

I need a data analysis expert to compare the outcomes of 5 patients who underwent sleeve gastrectomy for weight loss, then after 3 years of weight regain, underwent OAGB (One Anastomosis Gastric Bypass). The analysis should focus on comparing the excess weight loss after one year between the two surgeries and the changes in weight and Body Mass Index (BMI).

I have access to patient medical records in digital format (spreadsheets, databases). The metrics to be compared include:
- Excess Weight Loss (EWL)
- Body Mass Index (BMI)
- Overall weight loss

Ideal Skills:
- Proficiency in data analysis and statistics
- Experience in comparing surgical outcomes
- Familiarity with medical data analysis

Please bid if you can deliver a comprehensive analysis.