> -wrap-foot> a<0.05 for vs. CE; b< 0.05 for vs. CE + LM-NBI The results of analysis according to macroscopic type are shown in Table 2.
Finally when factors such as the level of wall invasion, percentage of polyploid cells, type of histogram, and macroscopic type were evaluated by multiple regression analysis, macroscopic type and percentage of polyploid cells were the only significant prognostic factors.
Macroscopic types were divided into protruded type (height of tumour ⩾3 mm) and flat type (height of tumour <3 mm).
The macroscopic tumour type was determined according to the classification of Watanabe with minor modifications, as follows (Watanabe, 1980): (i) protruding, mass-like (9.1%); (ii) granular, gastritis-like (19.2%); (iii) depressed, erosion (50.5%); (iv) excavated, ulceration (15.2%); and (v) mixed (6.1%).
On the basis of these findings, the DNA ploidy pattern and the macroscopic type may be useful markers of patients who will develop recurrence.
Similarly, macroscopic tumour types are classified as follows: type 0, superficial; type 1, polypoid; type 2, ulcerated with clear margin; type 3, ulcerated with infiltration; type 4, diffusely infiltrating; and type 5, unclassified.
According to the macroscopic types, there were 85 (65.4%) flat elevated and depressed lesions and 45 (34.6%) polypoid and protruded lesions.
The macroscopic mechanical parameters of each type are shown in Table 1, and the mesoscopic parameters after calibration are shown in Table 5.
