Table 1 Comparison of clinicopathologic variables between breast conservation surgery (BCS) group and mastectomy group.

From: Optimal surgical procedure for treating early-stage adenoid cystic carcinoma of the breast

Variable

Overall cohort (n = 583)

BCS*

(n = 386)

Mastectomy

(n = 197)

p&

Age

 ≤  44

47

31

16

 

 45–59

224

144

80

 

 60–75

211

140

71

 

 75 + 

101

71

30

0.770

Sex

 Female

577

384

193

 

 Male

6

2

4

0.187

Marital status

 Married

343

224

119

 

 Single

71

49

22

 

 Others

169

113

56

0.816

Race

 White

526

346

180

 

 Others

57

40

17

0.505

Side

 Left

292

195

97

 

 Right

291

191

100

0.770

Grade

 I

291

229

62

 

 II

194

132

62

 

 III + IV

98

58

40

 < 0.001

Radiotherapy

258

240

18

 < 0.001

Chemotherapy

73

45

28

0.378

Duration between diagnosis and surgery

  ≤ 1 month

477

311

166

 

  > 1 month

106

75

31

0.274

Regional nodes examined

 0

144

124

20

 

 1–4

308

224

84

 

 5–9

77

42

35

 

 10 + 

54

29

25

 < 0.001

Disease stage

 I

333

243

90

 

 II

250

143

107

 < 0.001

ER (+)

103

75

28

0.118

PR (+)

55

36

19

0.901

HER2 (+)

3

2

1

1.000

  1. *BCS Breast conservation surgery.
  2. &: Comparison between BCS and non-BCS groups.