Table 4 Comparison of patients treated with breast conserving treatment with either exclusive/preoperative radiotherapy or postoperative radiotherapy

From: High rates of breast conservation for large ductal and lobular invasive carcinomas combining multimodality strategies

 

Exclusive or preoperative radiotherapy ( N =168) a

Postoperative radiotherapy ( N =308)

 

Total

N

%

N

%

P

Menopause (DM=0)

0.44

 No

121

72

232

75

 

 Yes

47

28

76

25

 

Clinical T stage (DM=0)

0.03

 T2

129

77

262

85

 

 T3

39

23

46

15

 

Clinical N stage (DM=0)

0.21

 N0

105

63

210

68

 

 N1

63

37

98

32

 

Histological type (DM=0)

<10−3

 Ductal

142

85

292

95

 

 Lobular

26

15

16

5

 

Clinical response to primary chemotherapy

<10−3

 ⩾50%

104

63

239

78

 

 <50%

60

37

67

22

 

Hormonal receptors (DM=71)

0.24

 ER+ and/or PR+

99

68

192

74

 

 ER−/PR−

46

32

68

26

 
  1. DM=data missing; ER=estradiol receptor; HR=hormonal receptor; PR=progesterone receptor.
  2. a53 preoperative radiotherapy and 115 exclusive radiotherapy.
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