Skip to main content

Table 1 Main characteristics of glioma cases and controls in the seven-country INTEROCC study

From: INTEROCC case–control study: lack of association between glioma tumors and occupational exposure to selected combustion products, dusts and other chemical agents

  Cases (1,800) Controls (5,160)
  n % n %
Country     
  Australia 277 15.4 665 12.9
  Canada 169 9.4 649 12.6
  France 93 5.2 471 9.1
  Germany 366 20.3 1494 29.0
  Israel 282 15.7 698 13.5
  New Zealand 75 4.2 160 3.1
  United Kingdom 538 29.9 1023 19.8
Sex     
  Males 1116 62.0 2308 44.7
  Females 684 38.0 2852 55.3
Age (years)     
  30-39 328 18.2 791 15.3
  40-49 460 25.6 1388 26.9
  50-59 678 37.7 2022 39.2
  60-69 334 18.6 959 18.6
Interview type     
  Self respondent 1543 85.7 5137 99.6
  Proxy respondent 257 14.3 23 0.4
Atopy a     
  Yes 416 23.1 1380 26.7
  No 1384 76.9 3780 73.3
Smoking status     
  Current 508 28.2 1427 27.7
  Ex 386 21.4 1212 23.5
  Never 906 50.3 2521 48.9
Marital Status     
  Married 1422 79.0 4035 78.2
  Single, divorced or widowed 363 20.2 1115 21.6
  Unknown 15 0.8 10 0.2
Maximum level of education attained     
  Primary, secondary 766 42.6 2253 43.7
  Intermediate college 382 21.2 1080 20.9
  Tertiary 643 35.7 1822 35.3
  Unknown 9 0.5 5 0.1
  1. a Atopy: any medical history of allergy, asthma and/or eczema.