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Table 3 Results of partial correlation analysis between airborne levels of organic solvents and biomarkers of oxidative stress in nail technicians

From: Does the Low-level occupational exposure to volatile organic compounds alter the seasonal variation of selected markers of oxidative stress? A case–control study in nail technicians

  TBARS [ln-μM] GPx3 [ln-U/mL] GPx1 [ln-U/g Hb] Cp [ln-g/L] SOD1 [ln-U/mg Hb]
Ethanol [ln-mg/m3] 0.1813 0.0677 0.2628 * −0.1064 0.1004
Acetone [ln-mg/m3] −0.0661 0.0915 −0.0567 0.2263 0.2537 *
Toluene [ln-mg/m3] −0.0147 −0.1793 0.2519 * −0.1047 −0.0036
2-propanol [ln-mg/m3] −0.0583 −0.0456 0.0085 0.0543 0.1263
2-butanone [ln-mg/m3] 0.0589 0.0219 −0.0473 0.0380 0.1546
Ethyl acetate [ln-mg/m3] −0.1057 0.1658 −0.0081 0.2208 * 0.0110
Isopropyl acetate [ln-mg/m3] 0.0080 0.0431 −0.0513 0.2522 * 0.2146
n-butyl acetate [ln-mg/m3] 0.1906 0.0407 −0.1070 −0.0057 −0.1063
  1. Presented are the semi-partial correlation coefficients (rsp) for each given pair of airborne level of organic solvent and level of analyzed biomarker. Forward stepwise regression procedure upon ln-transformed data was employed. Significant associations are indicated in bold with respective level of significance indicated by the superscript. The portion of variability explained by the association: ethanol vs. GPx1: 6.9 %; acetone vs. SOD1: 6.4 %; toluene vs. GPx1: 6.3 %; ethyl acetate vs. Cp: 4.9 %; isopropyl acetate vs. Cp: 6.4 %
  2. * p < 0.05