Table 4 Analysis of factors influencing detection rate of sentinel lymph nodes mapping using carbon nanoparticles

 ≤50 years

15

12

3

0.006

 50–60 years

28

23

5

 60–70 years

8

2

6

 ≥70 years

3

1

2

 Not menopause

19

15

4

0.006

 Menopause ≤5 years

15

14

1

 Menopause 5–10 years

9

6

3

 Menopause 10–20 years

5

1

4

 Menopause ≥20 years

6

2

4

 Endometrioid adenocarcinoma

47

34

13

0.706

 Other types

7

4

3

 Medium/high differentiation

44

34

10

0.052

 Low differentiation

10

4

6

 Cornua uteri

23

17

6

0.19

 Fundus of uterus

12

7

5

 Corpus uteri

14

12

2

 Diffused in the uterine cavity

5

2

3

 ≤2cm

35

24

11

0.694

 >2cm

19

14

5

 Mucosal layer

7

4

3

0.320

 ≤1/2 muscularis

43

30

13

 >1/2 muscularis

4

4

0

 Yes

46

33

13

0.913

 No

8

5

3

 Yes

8

2

6

0.009

 No

46

36

10

 Atrophy

18

8

10

0.008

 Normal

30

26

4

 Hypertrophy

6

4

2

 Superficial

10

9

1

0.255

 Normal

41

26

15

 Deep

2

2

0

 Out of orificium vaginae

1

1

0

 Yes

7

0

7

<0.001

 No

47

38

9