Table 4: Frequency distribution of predisposing factors

in patients with oral cavity cancer in the INCan.

Predisposing factors

Men

n (%)

Women

n (%)

Subtotal

n (%)

fi

hi

Fi

Hi

Smoking

4 (3.20)

13 (13.50)

17 (7.7)

17

0.077

17

0.077

Alcoholism

8 (6.30)

3 (3.10)

11 (5.0)

11

0.050

28

0.127

Cooking with firewood

4 (3.20)

34 (35.40)

38 (17.1)

38

0.171

66

0.298

Consumption of drugs

3 (2.40)

0 (0.00)

3 (1.4)

3

0.014

69

0.312

Cooking with firewood

+ smoking

1 (0.80)

1 (1.00)

2 (0.9)

2

0.009

71

0.321

Alcoholism + smoking

37 (29.40)

12 (12.50)

49 (22.1)

49

0.221

120

0.542

Cooking with firewood

+ alcoholism

6 (4.80)

9 (9.40)

15 (6.8)

15

0.068

135

0.610

Alcoholism

+ smoking + drugs

6 (4.80)

0 (0.00)

6 (2.7)

6

0.027

141

0.637

Alcoholism + drugs

1 (0.80)

0 (0.00)

1 (0.5)

1

0.005

142

0.642

Alcoholism + smoking

+ cooking with firewood

44 (34.90)

1 (1.00)

45 (20.3)

45

0.203

187

0.845

Alcoholism + smoking

+ cooking with firewood

+ drugs

3 (2.40)

0 (0.00)

3 (1.4)

3

0.014

190

0.859

None

9 (7.10)

22 (23.20)

31 (14.0)

31

0.140

221

1.000

Total

126 (57.01)

95 (42.99)

221 (100.0)

221

1

 

 

Confidence level of 95% (p < 0.05).

fi = absolute frequency,

hi = relative frequency,

Fi = cumulative absolute frequency,

Hi = cumulative relative frequency.

Source: Database of the Department of Head and Neck Surgery of the INCan.