Table 2.
Statistical analysis of the urinary OH-PAHs in the studied groups (µg/l)
| Exposure type | Exposed group | Unexposed group | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Statistical analysis | Mean ± SD (min–max) |
Geo-mean | SE | Median | Mean ± SD (min–max) |
Geo-mean | SE | Median | Comparison |
| 1-OH-NaP |
1.01 ± 0.96 (0.31–3.86) |
0.73 | 0.19 | 0.55 |
0.57 ± 0.38 (0.25–1.98) |
0.49 | 0.07 | 0.45 | P = 0.04 |
| 2-OH-NaP | 0.83 ± 0.55 (0.3–2.26) | 0.69 | 0.11 | 0.62 |
0.61 ± 0.27 (0.15–1.28) |
0.54 | 0.05 | 0.53 | P = 0.22 |
| 2-OH-Flu |
1.34 ± 0.76 (0.35–3.2) |
1.2 | 0.15 | 1.36 |
1.03 ± 0.51 (0.29–1.95) |
0.86 | 0.1 | 1.27 | P = 0.13 |
| 1-OH-Pyr |
0.46 ± 0.5 (0.16–2.46) |
0.33 | 0.1 | 0.29 |
0.34 ± 0.37 (0.16–1.6) |
0.26 | 0.07 | 0.23 | P = 0.23 |
| 9-OH-Phe |
6.34 ± 8.14 (0.17–26.41) |
1.67 | 1.62 | 2.65 |
1.36 ± 2.35 (0.17–8.7) |
0.47 | 0.47 | 0.27 | P = 0.02 |
| OH-PAHs |
9.94 ± 8.1 (2.18–29.62) |
7.53 | 1.6 | 6.1 |
3.92 ± 2.6 (1.2–10.69) |
3.23 | 0.52 | 3.1 | P = 0.00 |