Table 1

p values by Mann-Whitney testing of the differences between groups

LGD, low grade dysplasia; HGD, high grade dysplasia.
Squamous mucosa
        Normal v LGD<0.0001 0.0005 0.0029
        Normal v HGD<0.0001<0.0001<0.0001
        Normal v LGD<0.0001 0.0016 0.0022
        Normal v HGD<0.0001<0.0002<0.0001
        Normal v LGDNSNSNS
        Normal v HGDNSNS 0.0216
        Normal v LGD 0.0039 0.0498NS
        Normal v HGD 0.0113 0.0118 0.0048
Barrett's mucosa
        Normal v LGD<0.0001<0.0001<0.0001
        Normal v HGD<0.0001<0.0001<0.0001
    Upper crypt
        Normal v LGD<0.0001 0.0002 0.0002
        Normal v HGD 0.0009 0.0027<0.0001
    Lower crypt
        Normal v LGDNSNSNS
        Normal v HGDNSNSNS
    Deep glands
        Normal v LGDNS 0.0117NS
        Normal v HGD 0.0055NS 0.0059