Table 2

Cancer sites considered in the 32 included studies

Cancer site

Study numbers


1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32


Buccal mucosa

X

X

X

X

X

X

X

X

Floor of mouth

X

X

X

X

X

X

X

X

X

X

X

Gingiva

X

X

Gum/palate

a

X

X

X

X

X

X

X

X

X

X

X

X

Lip

X

a

X

X

X

X

X

X

X

X

Oral cavity/mouth

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Pharynx/alveolus

X

X

X

b

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

X

Tongue

a

X

X

X

X

X

X

X

X

X

X

X

Tonsils

a

X

X

X

Salivary glands

X

X

X

X

Unspecified

b

X

X

Xc

X

X

X


a Specifically excluded by author

b Due to the joint reporting of pharynx and larynx cases, both sites were excluded from analyses

c Larynx cases could not be excluded due to incomplete reporting

Weitkunat et al. BMC Public Health 2007 7:334   doi:10.1186/1471-2458-7-334

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