Table 1 Patient characteristics by cases and controls

From: Racial disparity in pro-metastatic tumor microenvironment in treatment naïve breast cancer

 

Cases

Controls

All Patients

P-value

(N = 194)

(N = 221)

(N = 415)

Institution

   

<0.001

 Cornell

31 (16.0%)

0 (0%)

31 (7.5%)

 

 Montefiore

66 (34.0%)

114 (51.6%)

180 (43.4%)

 

 MSKCC

73 (37.6%)

84 (38.0%)

157 (37.8%)

 

 NYU

24 (12.4%)

23 (10.4%)

47 (11.3%)

 

Race

   

0.19

 White

82 (42.3%)

63 (28.5%)

145 (34.9%)

 

 Black

76 (39.2%)

108 (48.9%)

184 (44.3%)

 

 Asian

5 (2.6%)

6 (2.7%)

11 (2.7%)

 

 Other

31 (16.0%)

44 (19.9%)

75 (18.1%)

 

Age (years)

   

0.68

 Mean (SD)

56.0 (13.1)

56.8 (13.3)

56.4 (13.2)

 

 Median [Min, Max]

55.0 [26.0, 89.0]

56.0 [27.0, 89.0]

56.0 [26.0, 89.0]

 

Body Mass Index

   

0.81

 Mean (SD)

29.5 (6.66)

29.2 (6.26)

29.3 (6.43)

 

 Median [Min, Max]

28.2 [18.7, 56.8]

28.8 [15.4, 51.7]

28.6 [15.4, 56.8]

 

 Missing

33 (17.0%)

3 (1.4%)

36 (8.7%)

 

Surgery type

   

0.51

 BCT/Lumpectomy

107 (55.2%)

140 (63.3%)

247 (59.5%)

 

 Lumpectomy followed by mastectomy

8 (4.1%)

7 (3.2%)

15 (3.6%)

 

 Mastectomy

79 (40.7%)

72 (32.6%)

151 (36.4%)

 

 Missing

0 (0%)

2 (0.9%)

2 (0.5%)

 

Radiation

   

0.31

 Yes

127 (65.5%)

158 (71.5%)

285 (68.7%)

 

 No

62 (32.0%)

55 (24.9%)

117 (28.2%)

 

 Missing

5 (2.6%)

8 (3.6%)

13 (3.1%)

 

Tumor stage (pT)

   

<0.001

 T1 ( < 2 cm)

77 (39.7%)

136 (61.5%)

213 (51.3%)

 

 T2 (2-5 cm)

102 (52.6%)

81 (36.7%)

183 (44.1%)

 

 T3 ( > 5 cm)

15 (7.7%)

4 (1.8%)

19 (4.6%)

 

Lymph node status (pN)

   

<0.001

 Positive

116 (59.8%)

82 (37.1%)

198 (47.7%)

 

 Negative

73 (37.6%)

132 (59.7%)

205 (49.4%)

 

 Missing

5 (2.6%)

7 (3.2%)

12 (2.9%)

 

Tumor grade

   

<0.001

 High

145 (74.7%)

105 (47.5%)

250 (60.2%)

 

 Low-intermediate

49 (25.3%)

113 (51.1%)

162 (39.0%)

 

 Missing

0 (0%)

3 (1.4%)

3 (0.7%)

 

Subtype

   

0.86

 ER + /HER2-

118 (60.8%)

146 (66.1%)

264 (63.6%)

 

 TNBC

50 (25.8%)

51 (23.1%)

101 (24.3%)

 

 HER2+

26 (13.4%)

24 (10.9%)

50 (12.0%)

 
  1. Cases were defined as patients who developed distant recurrence during study period and controls were patients who did not develop distant recurrence during study period.
  2. Wilcoxon rank sum test is used for continuous variables. Chi-squared tests or Fisher's exact tests are used for categorical variables. Three patients were excluded as they were missing distant recurrence data. SD Standard deviation, pT pathological tumor stage, pN pathological lymph node status, ER+ Estrogen receptor positive, TNBC Triple negative breast cancer.