Table 2

Pooled estimates for the association between BPA, DCP or BC exposure and prevalent OW, OB and abdominal OB defined by WC; random-effect models

EDCOutcomeStudies (n)Pooled OR (95% CI)HeterogeneitySignificance tests of ES=1
Tau2χ2DfI2P value
BPA
 Prevalent OW (subgrouped by age)
Overall51.321 (1.012 to 1.724)0.03827.36445.7%0.118z=2.05 (p=0.041)
Children31.666 (0.821 to 3.382)0.27747.32272.7%0.026z=1.41 (p=0.157)
Adults21.254 (1.005 to 1.564)0.00000.0410.0%0.845z=2.01 (p=0.045)
 Prevalent OB (adults only)
Overall41.503 (1.273 to 1.774)0.00000.8730.0%0.833z=4.81 (p=0.000)
 Prevalent increased WC (subgrouped by age)
Overall61.494 (1.298 to 1.720)0.00115.1753.3%0.395z=5.59 (p=0.000)
Children21.623 (0.968 to 2.723)0.04341.29122.7%0.256z=1.83 (p=0.067)
Adults41.503 (1.267 to 1.783)0.00683.84321.8%0.280z=4.68 (p=0.000)
2,4-DCP
 Prevalent OB
Overall31.299 (0.860 to 1.961)0.09668.04275.1%0.018z=1.24 (p=0.213)
Children21.558 (0.702 to 3.458)0.28286.63184.9%0.010z=1.09 (p=0.276)
Adults11.030 (0.780 to 1.360)0.00000.000z=0.21 (p=0.835)
2,5-DCP
 Prevalent OB
Overall31.629 (1.283 to 2.066)0.01022.56221.8%0.278z=4.01 (p=0.000)
Children21.800 (1.018 to 3.184)0.11032.55160.8%0.110z=2.02 (p=0.043)
Adults11.620 (1.210 to 2.169)0.00000.000z=3.24 (p=0.001)
BC
 Prevalent elevated WC (subgrouped by BC compound)
Overall41.576 (0.846 to 2.938)0.07783.71319.1%0.295z=1.43 (p=0.152)
PBB-15313.500 (1.073 to 11.415)0.00000.000z=2.08 (p=0.038)
PBDE-15312.200 (0.581 to 8.329)0.00000.000z=1.16 (p=0.246)
PBDE-472 (Wm; M)1.041 (0.508 to 2.132)0.00000.4410.0%0.508z=0.11 (p=0.912)
  • BC, brominated compound; BPA, bisphenol A; DCP, dichlorophenol; df, degree of freedom; EDC, endocrine-disrupting chemical; ES, estimate effect; M, men; OB, obesity; OW, overweight; PBB, polybrominated biphenyl; PBDE, polybrominated diphenyl ether; WC, waist circumference; Wm, women.