Characteristics

All

YKL-40

p-value

(N = 50)

Low

(N = 23)

High

(N = 27)

No.

(%)

No.

(46%)

No.

(54%)

Age (years)

Mean ± SD

56.23 ± 10.99

49.54

±7.94

64.40

±8.39

0.002

Median (Range)

56 (39 - 87)

48

(39 - 67)

60

(55 - 87)

≤55 years

18

36%

15

(69.7%)

3

(0%)

<0.001‡

>55 years

32

64%

8

(30.3%)

24

(100%)

Pathological type

IDC

39

81.7%

24

(49%)

25

(51%)

0.448‡

Other

11

18.3%

4

(36.4%)

7

(63.6%)

Grade

Grade I

7

14%

7

(30.3%)

0

(0%)

0.003§

Grade II

13

26%

13

(45.5%)

0

(0%)

Grade III

30

60%

3

(24.2%)

27

(100%)

ER

Negative

20

40%

2

(4.2%)

18

(95.8%)

0.03‡

Positive

30

60%

27

(75%)

9

(25%)

PR

Negative

22

45%

3

(4.2%)

19

(95.8%)

0.04‡

Positive

28

55%

20

(75%)

8

(25%)

HER2/neu

Negative

30

40%

20

(87%)

3

(13%)

0.02‡

Positive

20

60%

3

(21.6%)

27

(78.4%)

Ki-67

Low

20

40%

20

(87%)

0

(0%)

<0.001‡

High

30

60%

3

(21.6%)

27

(78.4%)

Molecular type

Luminal A

25

41.7%

25

(100%)

0

(0%)

<0.001‡

Luminal B

10

16.7%

1

(10%)

9

(90%)

HER2 amplified

15

25%

0

(0%)

15

(100%)

Triple-ve

10

16.7%

2

(20%)

8

(80%)

T

T1

8

16%

8

(39.4%)

0

(0%)

0.002§

T2

10

20%

10

(33.3%)

0

(0%)

T3

22

44%

3

(27.3%)

18

(48.1%)

T4

10

20%

2

(0%)

18

(51.9%)

N