Table 4 Clinical-pathological data of the study population, divided in mPDCD1low and mPDCD1high groups

From: PD-1 (PDCD1) promoter methylation in Merkel cell carcinoma: prognostic relevance and relationship with clinico-pathological parameters

 

n

Study population, n (%)

mPDCD1low, n (%)

mPDCD1high, n (%)

χ2 test; p

p

Study population

69

69(100.0)

42(61)

27(39)

  

Age, median (range)

69

77 (41-95)

76(41-90)

81(50-95)

−2.04

0.042§

Age > 75 years

69

41(59)

22(52)

19(70)

2.21

0.137

Male sex

69

38(55)

26(62)

12(44)

2.02

0.155

Size, median (range)

65

2.5(0–95)

2.5(0–7)

2.45(1–9)

−0.11

0.909§

Size > 2 cm

69

38(55)

21(50)

17(63)

0.29

0.330

Tumor thickness, mm

65

12(1–45)

13(3–23)

11(1–45)

1.36

0.173§

Tumor thickness>10 mm

65

37(57)

23(59)

14(53.8)

0.17

0.683

Angioinvasion

65

38(59)

25(64)

13(50)

1.28

0.258

Mitosis > 10/HPF

69

40(58)

23(55)

17(63)

0.45

0.501

Ki67, median (range)

69

60(10-100)

60(20-100)

60(10-95)

0.15

0.882*

Ki67 > 50%

69

42(61)

26(62)

16(59)

0.22

0.635

MCPyV

69

35(51)

25(60)

10(37)

3.32

0.068

Immune cells

69

35(51)

33(79)

2(7)

 

<0.001**

Infiltrative growth

65

22(34)

16(41)

6(23)

2.24

0.134

PD-L1 immune cells 5-100%

69

31(45)

23(55)

8(30)

4.20

0.041

PD-L1 tumor 5-100%

69

24(35)

16(38)

8(30)

0.52

0.471

PD-L1 global

69

37(54)

29(69)

8(30)

10.27

0.001

Clinical stage III-IV

69

24(35)

16(38)

8(30)

0.52

0.471

Site

69

    

0.161**

head&neck

 

26(38)

12(17)

14(20)

  

Extremities

 

28(41)

19(28)

9(13)

  

Trunk

 

15(22)

11(16)

4(6)

  
  1. *Mann–Whitney test; **Fisher’sexact test
  2. n: number of patients for which clinico-pathological features were present and/or evaluated; HPF: high-power filed; mPDCD1low:low level of mPDCD1; mPDCD1high:high level of mPDCD1