Table 1

Associations between socioeconomic factors and risk for brain tumours in men

GliomaMeningiomaAcoustic neuroma
Mean age (years) (SD)61.0 (10.32)65.51 (10.96)56.7 (10.12)
Total number of cases37151612408
Socioeconomic indicatorNumberIRR* (95% CI)IRR† (95% CI)NumberIRR* (95% CI)IRR† (95% CI)NumberIRR* (95% CI)IRR† (95% CI)
Education
 Primary13581.01.07041.01.01491.01.0
 Secondary low8641.04 (0.95 to 1.13)1.02 (0.93 to 1.11)3631.03 (0.90 to 1.17)1.05 (0.92 to 1.19)920.86 (0.66 to 1.12)0.86 (0.66 to 1.13)
 Secondary high5831.22 (1.10 to 1.34)1.16 (1.05 to 1.28)2381.11 (0.96 to 1.29)1.17 (1.00 to 1.36)611.07 (0.80 to 1.45)1.08 (0.80 to 1.47)
 University low3831.28 (1.14 to 1.44)1.22 (1.08 to 1.37)1271.04 (0.86 to 1.26)1.10 (0.90 to 1.34)481.23 (0.88 to 1.71)1.24 (0.88 to 1.74)
 University high5271.28 (1.15 to 1.42)1.19 (1.07 to 1.33)1801.03 (0.87 to 1.22)1.12 (0.94 to 1.33)581.13 (0.83 to 1.54)1.13 (0.82 to 1.56)
Income
 Quintile 15071.01.02691.01.0571.01.0
 Quintile 25130.94 (0.83 to 1.07)0.94 (0.83 to 1.07)2860.98 (0.83 to 1.16)0.97 (0.82 to 1.15)61.20 (0.83 to 1.69)1.18 (0.83 to 1.70)
 Quintile 36931.00 (0.90 to 1.12)1.00 (0.88 to 1.11)3701.08 (0.92 to 1.27)1.06 (0.91 to 1.25)861.21 (0.86 to 1.69)1.20 (0.85 to 1.68)
 Quintile 49171.11 (1.00 to 1.24)1.10 (0.97 to 1.22)3581.01 (0.86 to 1.20)0.98 (0.83 to 1.16)860.97 (0.70 to 1.36)0.95 (0.67 to 1.34)
 Quintile 510851.20 (1.07 to 1.33)1.14 (1.01 to 1.27)3290.87 (0.73 to 1.03)0.83 (0.70 to 1.00)1121.14 (0.82 to 1.60)1.09 (0.78 to 1.53)
SEI based on occupation‡
 Low manual6991.01.03301.01.0701.01.0
 High manual7031.10 (0.99 to 1.23)1.08 (0.98 to 1.20)2780.95 (0.81 to 1.12)0.96 (0.82 to 1.13)861.33 (0.97 to 1.82)1.35 (0.98 to 1.85)
 Low non-manual3891.12 (0.99 to 1.27)1.08 (0.95 to 1.22)1700.99 (0.82 to 1.19)1.01 (0.84 to 1.22)481.45 (1.00 to 2.10)1.49 (1.03 to 2.15)
 Intermediate non-manual7341.25 (1.13 to 1.40)1.18 (1.06 to 1.31)2720.99 (0.84 to 1.17)1.04 (0.88 to 1.23)851.50 (1.08 to 2.05)1.54 (1.11 to 2.13)
 Self-employed2881.16 (1.01 to 1.33)1.12 (0.98 to 1.29)1220.99 (0.80 to 1.22)1.02 (0.83 to 1.26)291.21 (0.78 to 1.86)1.24 (0.80 to 1.92)
 High non-manual6391.31 (1.17 to 1.46)1.20 (1.07 to 1.34)2331.03 (0.87 to 1.22)1.12 (0.93 to 1.34)681.44 (1.03 to 2.02)1.51 (1.06 to 2.14)
 Farmers1341.17 (0.97 to 1.41)1.16 (0.96 to 1.39)681.02 (0.78 to 1.33)1.05 (0.80 to 1.37)151.43 (0.82 to 2.50)1.43 (0.81 to 2.52)
Marital status
 Married/cohabiting26541.01.010551.01.02841.01.0
 Previously married6550.87 (0.80 to 0.94)0.87 (0.80 to 0.95)3451.05 (0.93 to 1.20)1.07 (0.94 to 1.21)630.83 (0.63 to 1.10)0.85 (0.64 to 1.11)
 Never married4060.81 (0.73 to 0.90)0.83 (0.75 to 0.93)2121.16 (1.00 to 1.35)1.19 (1.02 to 1.38)611.07 (0.81 to 1.42)1.10 (0.83 to 1.46)
  • *Adjusted for age at diagnosis (modelled as age and age3), time period and region.

  • †Analyses of education and SEI additionally adjusted for marital status and income, analyses of income additionally adjusted for marital status and education. Analysis of marital status additionally adjusted for education and income.

  • ‡Total number is smaller than in the other analyses because of the restriction to the working population.

  • IRR, incidence rate ratio; SEI, Swedish Socioeconomic Classification.