Table 5 Comparison of corrected MA and MHA concentrations between the first and second weeks (unit: (mg/g creatinine)/(mg/m3))
Corrected metabolitesFirst week (n44)Second week (n44)p Value
MA (n44)1.76 (0.35)0.50 (0.12)<0.001
MHA (n44)2.66 (0.68)1.07 (0.18)0.011
  • The urinary post-shift MA and MHA concentrations were divided by personal ethyl benzene and xylene exposure levels, respectively.

  • Mean (SE).

  • By linear mix model test.