a strong trendP = 0.054
After adjusting the Cox proportionate hazards model for age, sex, insulin‐dependent diabetes, hypertension, renal impairment, chronic obstructive lung disease, and congestive heart failure, a strong trend for lower long‐term survival of patients with a higher IFT score was demonstrated (adjusted hazard ratio: 0.6; 95% CI: 0.4‐1.0; P = 0.054; Figure 2 ). 4.