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Table 2 Associations between urinary 3-PBA and BMI using piece-wise linear regression analysis

From: Association between urinary 3-phenoxybenzoic acid and body mass index in Korean adults: 1st Korean National Environmental Health Survey

  Flexion point of Log-transformed urinary 3-PBA Below flexion point After flexion point
Beta-estimate (SE) P value Beta-estimate (SE) P value
Model 1 1.4 0.5830 (0.0769) < 0.0001 −0.2137 (0.1679) 0.20
Model 2 1.5 0.4038 (0.0786) < 0.0001 −0.3609 (0.1792) 0.04
Model 3 1.4 0.4004 (0.0820) < 0.0001 −0.3443 (0.1679) 0.04
  1. *Model 1 : Crude
  2. Model 2 : Sex, age adjusted
  3. Model 3 : Sex, age, region, current smoking status, current drinking status, regular exercise, education, use of mosquitocide, and job classification adjusted