Table 3 Correlation between TILs density (based on mean number of touching TILs with cutoff 20 cells/DCIS duct) and clinicopathological parameters in the validation set

From: Prognostic significance of tumor-infiltrating lymphocytes in ductal carcinoma in situ of the breast

Parameter

TILs density

Chi square (χ2)

p-value

Dense N (%)

Sparse N (%)

 

Patient age

  ≤50 years

71 (52)

65 (48)

4.09

0.043

  >50 years

168 (42)

230 (58)

Presentation

  Screening

114 (41)

166 (59)

3.89

0.049

  Symptomatic

125 (49)

129 (51)

DCIS Size

  ≤20 mm

85 (37)

147 (63)

10.66

0.001

  >20 mm

152 (51)

147 (49)

DCIS Grade

  Low

8 (14)

49 (86)

41.18

1.1 × 10−9

  Moderate

44 (33)

88 (67)

  High

187 (54)

158 (46)

Comedo type necrosis

  Yes

185 (50)

182 (50)

15.16

0.00009

  NO

54 (32)

113 (68)

Associated Paget’s disease

  Yes

18 (69)

8 (31)

5.03

0.025

  No

156 (46)

180 (54)

Estrogen receptor status

  Negative

83 (72)

33 (28)

41.73

1.04 × 10−10

  Positive

114 (36)

198 (64)

Type of DCIS

  Mixed with invasion

105 (80)

27 (20)

51.29

8.96 × 10−13

  Pure DCIS

239 (45)

295 (55)

  1. Significant p values are in bold