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Table 2 Clinical parameters and association with AKT1 E17K mutation in previously untreated breast cancer patients (cohort A)

From: AKT1 E17K mutation profiling in breast cancer: prevalence, concurrent oncogenic alterations, and blood-based detection

Parameter

Total (N = 494)

Mutation

P-valuea (adjusted P-value)

  

Wild type (n = 465)

AKT1 E17K (n = 29)

 

Age, years

   

0.55 (1.00)

  < 35

8 (1.6)

8 (1.7)

0

 

 35–65

255 (51.6)

241 (51.8)

14 (48.3)

 

  > 65

231 (46.8)

216 (46.5)

15 (51.7)

 

Menopausal statusb

   

0.34 (1.00)

 Pre

77 (15.6)

74 (15.9)

3 (10.3)

 

 Post

381 (77.1)

356 (76.6)

25 (86.2)

 

UICC stage

   

0.04 (0.47)

 I

142 (28.7)

129 (27.7)

13 (44.8)

 

 II

198 (40.1)

187 (40.2)

11 (37.9)

 

 III

110 (22.3)

105 (22.6)

5 (17.2)

 

 IV

44 (8.9)

44 (9.5)

0

 

Grade

   

0.03 (0.38)

 1

72 (14.6)

64 (13.8)

8 (27.6)

 

 2

315 (63.8)

296 (63.7)

19 (65.5)

 

 3

107 (21.7)

105 (22.6)

2 (6.9)

 

Lymph-node metastasis (N stage)c

   

0.17 (1.00)

 N0

238 (48.2)

223 (48.0)

15 (51.7)

 

 N1

138 (27.9)

128 (27.5)

10 (34.5)

 

 N2

78 (15.8)

77 (16.6)

1 (3.4)

 

 N3

39 (7.9)

36 (7.7)

3 (10.3)

 

Distant metastasis (M stage)

   

0.02 (0.25)

 M0

450 (91.1)

421 (90.5)

29 (100)

 

 M1

44 (8.9)

44 (9.5)

0

 

Histologyd

   

0.83 (1.00)

 Ductal

368 (74.5)

346 (74.4)

22 (75.9)

 

 Lobular

89 (18.0)

85 (18.3)

4 (13.8)

 

 Mixed

10 (2.0)

9 (1.9)

1 (3.4)

 

 Others

23 (4.7)

21 (4.5)

2 (6.9)

 

St. Gallen criteriae

   

0.19 (1.00)

 Luminal A

210 (42.5)

194 (41.7)

16 (55.2)

 

 Luminal B1

53 (10.7)

52 (11.2)

1 (3.4)

 

 Luminal B2

231 (46.8)

219 (47.1)

12 (41.4)

 

HER2 status

   

0.03 (0.38)

 IHC-Score (3+)

37 (7.5)

37 (8.0)

0

 

 IHC-Score (0 - 2+)

457 (92.5)

428 (92.0)

29 (100)

 

PR statusf

   

0.91 (1.00)

 Negative

43 (8.7)

41 (8.8)

2 (6.9)

 

 Positive

375 (75.9)

356 (76.6)

19 (65.5)

 
  1. aLikelihood-ratio test for the hypothesis that the prevalence of AKT1 E17K mutation in breast cancer patients does not differ based on the respective clinical parameter. Displayed are only selected parameters
  2. bMissing, n = 36. cMissing, n = 1. dMissing, n = 4. etumor grade was used instead of Ki-67 for subgrouping. fMissing, n = 76
  3. Abbreviations: AKT1 v-akt murine thymoma viral oncogene, HER2 human epidermal growth factor receptor 2, IHC immunohistochemistry, PR progesterone receptor, UICC Union for International Cancer Control