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Table 1 Main characteristics of cases and controls

From: Family history of cancer, personal history of medical conditions and risk of oral cavity cancer in France: the ICARE study

 

Cases

Controls

p*

 

N (%)

N (%)

 

Gender

  

p = 0.12

Male

556 (80.7)

2720 (78.1)

 

Female

133 (19.3)

761 (21.9)

 

Area of residence (“département”)

  

p < 0.001

Calvados

65 (9.4)

458 (13.1)

 

Doubs/Territoire de Belfort

9 (1.3)

134 (3.8)

 

Hérault

71 (10.3)

437 (12.5)

 

Isère

82 (11.9)

497 (14.3)

 

Loire Atlantique

127 (18.4)

404 (11.6)

 

Manche

68 (9.9)

311 (8.9)

 

Bas Rhin

62 (9.0)

451 (12.9)

 

Haut Rhin

14 (2.0)

118 (3.4)

 

Somme

145 (21.0)

476 (13.7)

 

Vendée

46 (6.8)

195 (5.8)

 

Age at interview

  

p < 0.001

< 50

161 (23.4)

807 (23.2)

 

50-59

293 (42.5)

995 (28.6)

 

60-69

171 (24.8)

1160 (33.3)

 

≥ 70

64 (9.3)

519 (14.9)

 

Education level

  

p < 0.001

Primary or less

227 (32.9)

763 (21.9)

 

Vocational secondary

294 (42.7)

1351 (38.8)

 

General secondary

60 (8.7)

400 (11.5)

 

University

85 (12.3)

901 (25.9)

 

Tobacco status

  

p < 0.001

Never-smokers

53 (7.7)

1233 (35.4)

 

Former smokers

152 (22.1)

1436 (41.2)

 

Current smokers

482 (70.0)

803 (23.1)

 

Quantity of tobacco (grams/day)

  

p < 0.001

Never-smokers

53 (7.7)

1233 (35.4)

 

1-19

275 (39.9)

1486 (42.7)

 

20-39

271 (39.3)

600 (17.2)

 

≥ 40

85 (12.3)

146 (4.2)

 

Duration of tobacco smoking (years)

  

p < 0.001

Never-smokers

53 (7.7)

1233 (35.4)

 

1-30

179 (26.0)

1454 (41.8)

 

31-40

284 (41.2)

468 (13.4)

 

> 40

170 (24.7)

313 (7.1)

 

Alcohol consumption (glasses/day)

  

p < 0.001

Never-drinkers

38 (5.5)

298 (8.6)

 

< 0.6

60 (8.7)

908 (26.1)

 

0.6-2.0

74 (10.7)

914 (26.2)

 

2.1-4.5

140 (20.3)

771 (22.1)

 

> 4.5

360 (52.2)

570 (14.8)

 

BMI 2 years before the interview

  

p < 0.001

< 18.5

28 (4.1)

38 (1.1)

 

18.5-24.9

380 (55.2)

1367 (39.3)

 

25-29.9

188 (27.3)

1367 (39.3)

 

≥ 30

65 (9.4)

577 (16.6)

 
  1. *p values are derived from the Pearson’s chi-square test for categorical variables or Student’s tests for continuous variables.
  2. Former smokers were subjects who had stopped smoking for at least 2 years.