Key potential predictors for the development of comorbidity between osteoarthritis and chronic pancreatitis included Body Mass Index (BMI), the total score of the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), fecal elastase-1 levels, C-reactive protein (CRP), ferritin, retinol, tocopherol, 25(OH) vitamin D3, and various gastrointestinal symptom assessment scales (Figure 11). The gene discussed is CRP; the disease is osteoarthritis.