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Table 1 Cohort Demographics

From: Thyroid hormone levels associate with exposure to polychlorinated biphenyls and polybrominated biphenyls in adults exposed as children

  Total Cohort
(N = 715)
Exposed before pubertyd
(N = 446)
Exposed after pubertye
(N = 269)
P-value
Current agea (years) 51.19 ± 15.21 41.62 ± 9.53 67.07 ± 7.73 <  2.2e-16
Age exposeda (years) 13.60 ± 12.21 5.47 ± 5.19 27.08 ± 7.78 <  2.2e-16
Number maleb 275 (38.4%) 120 (26.9%) 155 (57.6%) 6.28e-16
Total PBB (ppb)c 0.34 (5.79) 0.22 (5.73) 0.72 (4.48) <  2.2e-16
Total PBB (ng/g lipid)c 51.11 (6.11) 31.84 (5.95) 111.99 (4.80) 8.39e-3
Total PCB (ppb)c 0.65 (2.76) 0.45 (2.64) 1.21 (2.13) <  2.2e-16
Total PCB (ng/g lipid)c 98.88 (2.83) 66.81 (2.63) 189.43 (2.24) <  2.2e-16
  1. aMean and standard deviation
  2. bFrequency and percentage
  3. cGeometric mean and geometric standard error
  4. dExposed before finishing puberty (Age of exposure <= 16)
  5. eExposed after finishing puberty (Age of exposure > 16)