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Table 3 Selected studies reporting associations between serum BDE 47 concentrations (ng/g lipid) and associations with thyroid hormone, in relation to NHANES serum concentrations

From: PBDE flame retardants, thyroid disease, and menopausal status in U.S. women

NHANES (all participants) 25th percentile 9.3 50th percentile 19.2 75th percentile 40.9
Epi Study Hagmar 2001 [60] Dallaire 2009 [59] Bloom 2008 [58] Chevrier 2010 [26] Turyk 2008 [61] Stapleton 2011 [29] Abdelouahab 2013 [25] Zota 2011 [30]
n 110 623 36 270 405 140 380 25
Gender Men Men Men (mostly) Women (pregnant) Men Women (pregnant) Women (pregnant) Women (pregnant)
Central Tendency BDE 47 1.04 2.16 7.9 15.3 16.2# 16.5 21.5 43.1
TSH -* - - -* - + + +
Total T3   +*    -* + -*  
Free T3      - + +  
Total T4     - - +* -* +
Free T4   + + + + +* +* -
  1. + positive association
  2. - Negative association
  3. * p < 0.05
  4. # estimated