Table 3. Pairwise comparison using Kruskal-Wallis test with Bonferroni correction.

Location	Contrast	Bon _p	Bonp
1	1 V 2	0.03985	< 0.05
1	1 V 3	1.00000	1
1	1 V 4	0.00126	< 0.05
2	1 V 2	0.00000	< 0.05
2	1 V 3	0.00000	< 0.05
2	1 V 4	0.00000	< 0.05
3	1 V 2	0.00000	< 0.05
3	1 V 3	0.00000	< 0.05
3	1 V 4	0.00000	< 0.05
4	1 V 2	0.06622	0.066
4	1 V 3	0.00000	< 0.05
4	1 V 4	0.00000	< 0.05
5	1 V 2	0.00000	< 0.05
5	1 V 3	0.00000	< 0.05
5	1 V 4	0.00000	< 0.05
6	1 V 2	0.00000	< 0.05
6	1 V 3	0.00000	< 0.05
6	1 V 4	0.00000	< 0.05
7	1 V 2	0.00000	< 0.05
7	1 V 3	0.00000	< 0.05
7	1 V 4	0.00000	< 0.05
8	1 V 2	0.27276	0.273
8	1 V 3	0.00000	< 0.05
8	1 V 4	0.00000	< 0.05

Location 1: esophagus; 2: stomach (fundus); 3: stomach (upper corpus); 4: stomach (lower corpus); 5: antrum, 6: duodenal bulb; 7: II part of duodenum, 8: number of lesions identified.