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. Author manuscript; available in PMC: 2022 Jul 1.
Published in final edited form as: Int J Hyg Environ Health. 2021 Jun 10;236:113782. doi: 10.1016/j.ijheh.2021.113782

Table 4.

Univariable analysis using urine metabolite concentrationsA (μg/g creatinine) as the dependent variable.

Outcome Logarithm of DPhP
Concentration		 Logarithm of BDCPP
Concentration		 Logarithm of BCEtP
Concentration
Covariate Estimate (SE) Factor P-value Estimate (SE) Factor P-value Estimate (SE) Factor P-value
Exposure Time
  Pre-Fire Reference Reference Reference
  3-Hour Post 0.54 (0.10) 1.72 <0.001 0.13 (0.08) 1.13 0.141 0.15 (0.12) 1.16 0.243
  6-Hour Post 0.52 (0.10) 1.68 <0.001 0.08 (0.08) 1.08 0.374 0.31 (0.12) 1.37 0.013
  12-Hour Post 0.23 (0.10) 1.26 0.022 −0.11 (0.08) 0.89 0.191 −0.34 (0.12) 0.71 0.009
  3-Hour Post Reference Reference Reference
  6-Hour Post −0.03 (0.10) 0.97 0.792 −0.05 (0.08) 0.95 0.548 0.17 (0.12) 1.18 0.176
  12-Hour Post −0.31 (0.10) 0.73 0.003 −0.24 (0.08) 0.79 0.007 −0.48 (0.12) 0.62 <0.001
  6-Hour Post Reference Reference Reference
  12-Hour Post −0.28 (0.10) 0.75 0.006 −0.19 (0.08) 0.83 0.032 −0.65 (0.12) 0.52 <0.001
Outcome Logarithm of 3-Hour Post DPhP
Concentration		 Logarithm of 3-Hour Post BDCPP
Concentration		 Logarithm of 3-Hour Post BCEtP
Concentration
CovariateB Estimate (SE) Factor P-value Estimate (SE) Factor P-value Estimate (SE) Factor P-value
Job Assignment
  Exterior Reference Reference Reference
  Interior 0.05 (0.21) 1.05 0.812 −0.22 (0.20) 0.80 0.284 0.23 (0.18) 1.26 0.213
  Overhaul 0.15 (0.21) 1.16 0.491 −0.14 (0.20) 0.87 0.480 0.29 (0.18) 1.34 0.119
  Interior Reference Reference Reference
  Overhaul 0.10 (0.21) 1.10 0.652 0.08 (0.20) 1.08 0.703 0.06 (0.17) 1.07 0.705
Outcome Logarithm of 6-Hour Post DPhP
Concentration		 Logarithm of 6-Hour Post BDCPP
Concentration		 Logarithm of 6-Hour Post BCEtP
Concentration
CovariateB Estimate (SE) Factor P-value Estimate (SE) Factor P-value Estimate (SE) Factor P-value
Job Assignment
  Exterior Reference Reference Reference
  Interior 0.13 (0.21) 1.14 0.536 −0.03 (0.15) 0.97 0.820 0.13 (0.20) 1.13 0.524
  Overhaul 0.25 (0.21) 1.28 0.237 0.27 (0.15) 1.31 0.077 0.35 (0.20) 1.41 0.095
  Interior Reference Reference Reference
  Overhaul 0.12 (0.21) 1.13 0.567 0.31 (0.15) 1.36 0.048 0.22 (0.19) 1.25 0.258
A.

No Univariable analysis was conducted for metabolites with less than 60% detection rates (BCPP, DBuP, DpCP, TBBA, DoCP, and DBzP).

B.

Logarithm of pre-fire concentration was adjusted for in the model.