All (n = 28)

AC (n = 13)

SCC (n = 10)

OT (n = 5)

P

Sex, n

Male

21

7

9

5

0.051

Female

7

6

1

0

Age, years, mean

71

75

69

66

0.03

Smoking status, No.

smoker

24

9

10

5

0.067

Non-smoker

4

4

0

0

Pathological stage, No.

IA

6

2

4

0

0.36

IB

9

4

3

2

IIA

3

1

2

0

IIB

4

3

0

1

IIIA

4

2

0

2

IIIB

2

1

1

0