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Table 3 The relationship between age at first asbestos exposure and lung cancer

From: Systematic Review of the Effects of Asbestos Exposure on the Risk of Cancer between Children and Adults

Study (Type of risk) Age at first exposure Risk 95% CI a
Chen M (2012) [22] (SMRb) < 20 years 7.70 3.7-14.2
≥ 20 years 8.50 2.3-21.8
Pira E (2007) [25] (SMRb) < 25 years 281 Does not include 100
25-34 years 424 Does not include 100
≥ 35 years 269 Does not include 100
Luce D (2000) [27] (ORc) Men
Birth 0.93d 0.5-1.8
< 20 years 0.72d 0.2-3.1
≥ 20 years 0.85d 0.3-2.9
Women
Birth 2.51d 0.9-6.8
< 20 years 2.03d 0.2-25.9
≥ 20 years 2.93d 0.3-25.5
  1. a CI Confidence intervals.
  2. b SMR Standardized Mortality Ratio.
  3. c OR Odds Ratio.
  4. d Odds ratio adjusted for age (≤55, 56–65, >65 years) and smoking in pack-years: four categories for men (<20, 20–39, 40–59, ≥60) and three categories for women (never smoker, <20, ≥20).