Abstract 85
Total (n = 21)
Mean age = 54 years (range 29–71)
Age <50 years (n = 5)
Age >50 years (n = 16)
Mean (SD) % of COX deficient crypts
4.87 (4.8)
1.24 (0.8)
(p = 0.016) 6.94 (1.28)