Table 1 Tobacco chewing and sociodemographic factors

From: Tobacco chewing and female oral cavity cancer risk in Karunagappally cohort, India

 

Tobacco chewing

   
 

Yes a

No a

Odds ratio b

95% CI

 

Total

18 612 (100%)

59 221 (100%)

  

P<0.001

Age at interview (years)

 30−

1889 (7%)

25 964 (93%)

1

Reference

 

 40−

4108 (21%)

15 377 (79%)

3.67

3.47–3.89

 

 50−

4757 (35%)

8734 (65%)

7.49

7.06–7.94

 

 60−

5060 (44%)

6414 (56%)

10.84

10.22–11.51

 

 70−

2411 (50%)

2411 (50%)

13.74

12.77–14.79

 

 80−

387 (55%)

321 (45%)

16.57

14.19–19.35

 

Religion

    

P<0.001

 Hindu

13 960 (25%)

41 969 (75%)

1

Reference

 

 Moslem

3953 (26%)

11 047 (74%)

1.18

1.13–1.23

 

 Christian

699 (10%)

6205 (90%)

0.31

0.28–0.33

 

Family income (Rs.) a

    

P<0.001

 <500

1943 (34%)

3797 (66%)

1

Reference

 

 501–1200

6407 (28%)

16 422 (72%)

0.79

0.74–0.84

 

 1201–2500

6766 (24%)

21 920 (76%)

0.60

0.56–0.63

 

 2501–3500

2405 (18%)

10 703 (82%)

0.40

0.37–0.42

 

 3500+

1091 (15%)

6379 (85%)

0.27

0.25–0.29

 

Education

    

P<0.001

 Illiterate

6144 (47%)

6917 (53%)

1

Reference

 

 Primary school

7272 (33%)

14 803 (67%)

0.67

0.64–0.70

 

 Middle school

3750 (20%)

14 983 (80%)

0.45

0.42–0.47

 

 High school

1257 (7%)

18 094 (94%)

0.22

0.21–0.24

 

 College

70 (2%)

4081 (98%)

0.12

0.11–0.14

 

 Unknown

119 (26%)

343 (74%)

0.45

0.37–0.54

 

Occupation

    

P<0.001

 Fishermen and farmers

1180 (53%)

1060 (47%)

1

Reference

 

 Unemployed

548 (13%)

3522 (87%)

0.29

0.27–0.32

 

 House wives/students

7523 (18%)

34 023 (82%)

0.40

0.37–0.43

 

 Skilled workers

9349 (32%)

20 297 (68%)

0.67

0.62–0.72

 

 Others

12 (4%)

319 (96%)

0.18

0.14–0.22

 
  1. aThose who chew tobacco currently or in the past. Those whose tobacco chewing status was unknown were excluded from analysis.
  2. bOdds ratio and 95% CI (confidence interval) were obtained by logistic analysis adjusting for age at interview (5-year category). In the analysis of association with age, univariate analysis logistic analysis was conducted.
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