FH and esophageal squamous cell carcinoma: The relation of FH to survival was modified by age (P interaction = 0.01) (Figure 1) such that younger (<50 years) ESCC cases with a positive FH had poorer survival (Figure 2), but not older cases (Figure 3); median survival for FH positive ESCC cases was 473 days versus 712 days for FH negative cases.