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Table 1 Scoring methods of Slug expression

From: Evaluation of Slug expression is useful for predicting lymph node metastasis and survival in patients with gastric cancer

Measures Number Percent
Extent
 0: negative (<5%) 15 3.3
 1: sporadic (5–25%) 35 7.6
 2: focal (25–50%) 141 30.7
 3: diffuse (>50%) 268 58.4
Intensity
 0: no staining 2 0.4
 1: weak staining 24 5.2
 2: moderate staining 103 22.4
 3: strong staining 330 71.9
Extent × Intensity
= Slug composite score (range 0–9)   
 Low (≤4) 104 22.7
 Mid (6) 130 28.3
 High (9) 225 49.0