Table 3

Antral histological scores for the dupA matched groups


Chronic inflammation
Acute inflammation
Atrophy
Intestinal metaplasia

dupA+




     Mean
2.36
1.31
0.74
0.49
     Range
2–3
0–3
0–3
0–3
     Median
2
1
1
0
dupA-




     Mean
2.24
1.3
0.63
0.47
     Range
1–3
0–2
0–3
0–3
     Median
2
1
0
0
Z
-1.92
-0.066
-0.956
-0.06
P
0.058
0.948
0.339
0.952

The individual grades for each histological feature were used in a Mann-Whitney U test to explore difference

Zhang et al. BMC Gastroenterology 2008 8:49   doi:10.1186/1471-230X-8-49