Table 8 |
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|
Summary statistics for PCE exposure indices in our study and other studies |
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|
PCE exposure indices |
Present study (n = 18) |
Gobba (n = 26) [15] |
Solet (n = 195) [16] |
Lauwerys (n = 26) [17] |
Skender (n = 18) [37] |
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|
|
|
|
|
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|
M (SD) |
GM (GSD) |
M (SD) |
GM (GSD) |
M (SD) |
GM (GSD) |
M (SD) |
GM (GSD) |
M (SD) |
GM (GSD) |
|
|
|
|
|
|
|
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|
Machine type(s) |
DD |
DD |
DD & T |
Unknown |
Unknown |
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|
|
|
|
|
|
|
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|
PCE TWA (ppm) |
3.1 (4.5) |
1.6 (3.3) |
6.5 (6.4) |
T29.5 (28.6) DD7.1 (6.4) |
T 17.1 (3.6) DD6.5 (2.0) |
20.8 |
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|
PCE in blood (ng/ml) pre-shift |
70.5 (106.4) |
36.7 (3.3) |
400 |
0.6 |
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|
PCE in blood (ng/ml) post-shift |
726 (937) |
1200 |
1.5 |
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|
PCE in exhaled breath (ppm) pre-shift |
0.5 (0.4) |
0.4 (2.7) |
1.9 |
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|
PCE in exhaled breath (ppm) mid-shift |
T 7.7 (6.1) DD1.5 (1.2) |
T 6.6 (2.3) DD2.2 (1.6) |
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|
PCE in exhaled breath (ppm) post-shift |
1.2 (0.9) |
0.9 (2.5) |
7.9 (12.1) |
5.1 |
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|
TCA in urine/creatinine (mg/g) pre-shift |
1.1 (1.9) |
0.3 (7.2) |
3.9 |
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|
TCA in urine/creatinine (mg/g) post-shift |
0.9 (1.0) |
0.5 (3.9) |
3.4 |
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|
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|
Abbreviations: n, number of samples/specimens; M, arithmetic mean; SD, standard deviation; GM, geometric mean; GSD, geometric standard deviation; DD, dry-to-dry; T, transfer Some measurements from previous studies were converted from mg/L, mg/m3, mmol/mol, etc. |
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|
McKernan et al. Environmental Health 2008 7:12 doi:10.1186/1476-069X-7-12 |
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