Skip to main content

Advertisement

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.