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. 2017 May 27;8(43):74096–74105. doi: 10.18632/oncotarget.18242

Table 6. Relationship between Ki67 status and Nottingham Prognostic Index (NPI).

Ki67 high expression n (%) Ki67 low expression n (%) X2 P
NPI score 9.402 0.009
 2.00–3.40 196 (41.7) 61 (58.1)
 3.41–5.40 241 (51.3) 38 (36.2)
 > 5.40 33 (7.0) 6 (5.7)
Grade 23.322 0.000
 High histological grade 62 (13.8) 5 (5.1)
 Intermediate histological grade 338 (75.3) 66 (66.7)
 Low histological grade 49 (10.9) 28 (28.3)
Tumor size 5.723 0.126
 T1 223 (40.6) 71 (50.1)
 T2 286 (52.1) 58 (40.8)
 T3 19 (3.5) 6 (4.2)
 T4 21 (3.8) 7 (4.9)
Lymph nodes 1.848 0.397
 N0 266 (59.4) 54 (61.4)
 N1 181 (40.4) 33 (37.5)
 N2 1 (0.2) 1 (1.1)