Wei et al reported the Subtype Distribution Score of Gastric Intestinal Metaplasia (SDSGIM) for evaluating a patient with gastric intestinal metaplasia (GIM). The authors are from the Medical School of Southeast University in Naning, China.
Examination: gastric biopsies from gastric antrum and gastric corpus
Parameters:
(1) score for GIM in antrum
(2) score for GIM in corpus
Parameter
Finding
Points
GIM in antrum
none
0
type I
1
type II
2
type III
3
GIM in corpus
none
0
type I
1
type II
2
type III
3
SDSGIM =
= SUM(points for both parameters)
Interpretation:
• minimum score: 0
• maximum score: 6
• Patients with benign disease usually had SDSGM <= 2, although scores up to 5 can be seen.
• Patients with dysplasia have SDSGM >= 3, with most 4 or 5.
Performance:
• The area under the ROC curve is 0.89.
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