Cytogenetic Abnormality in Exfoliated Cells of Buccal Mucosa in Head and Neck Cancer Patients in the Tunisian Population: Impact of Different Exposure Sources
Table 1
Comparison of demographic and lifestyle characteristics between HNC cases and controls.
Characteristics
Controls no. (%)
Patients no. (%)
Sample size
Gender
0.004
Male
30 (52.6)
34 (75.6)
Female
27 (47.4)
11 (24.4)
Age (years)
NS
Mean ± SD
≤55
25 (43.4)
16 (35.6)
>55
32 (52.6)
29 (64.4)
Tobacco smoking
<0.001
No
44 (77.2)
18 (40.0)
Yes
13 (22.8)
27 (60.0)
Mean ± SD (PY)a
c
Tobacco chewing
NS
No
48 (84.2)
31 (68.9)
Yes
9 (15.8)
14 (31.1)
Mean ± SD (CY)b
c
Alcohol drinking
<0.001
No
57 (100.0)
31 (68.9)
Yes
0 (0.0)
14 (31.1)
Occupational exposure
<0.001
No
45 (78.9)
16 (35.6)
Yes
12 (21.1)
29 (64.4)
Mean ± SD (year)
c
Occupation
NS
Cement worker
7 (12.3)
15 (33.3)
Farmer
5 (8.8)
9 (20.0)
Painter
5 (8.8)
5 (11.1)
Amalgam fillings
0.001
No
38 (66.7)
27 (60.0)
Yes
19 (33.3)
18 (40.0)
Two-sided chi-square test. aPY: smoking index expressed as the number of packs of 20 tobacco cigarettes per day for 1 year.
bCY: consumption year = frequency of neffa consumed−kept/day × duration of year.
c.
