Table:
Biomarker	Overall	P&D drivers	Dockworkers	Office clerks
Mean (±SD)	GM (±GSD)	Mean (±SD)	GM (±GSD)	Mean (±SD)	GM (±GSD)	Mean (±SD)	GM (±GSD)
ICAM-1 (ng/mL)	202 ± 40	198 ± 1.22	208 ± 42	203 ± 1.23	216 ± 34	213 ± 1.17	181 ± 32	178 ± 1.19
VCAM-1 (ng/mL)	677 ± 131	661 ± 1.21	679 ± 144	663 ± 1.23	673 ± 123	658 ± 1.21	675 ± 115	661 ± 1.19
IL-6 (pg/mL)	1.38 ± 1.20	1.09 ± 1.71	1.36 ± 0.79	1.12 ± 1.59	1.50 ± 2.17	0.98 ± 2.14	1.30 ± 0.82	1.11 ± 1.61
CRP (mg/L)	1.66 ± 1.80	1.00 ± 2.63	1.53 ± 1.51	1.01 ± 2.36	1.72 ± 1.68	0.98 ± 3.18	1.87 ± 2.41	1.01 ± 2.90
8-OHdG (μg/g creat.)	55.9 ± 31.5	47.7 ± 1.79	58.9 ± 32.9	49.3 ± 1.90	52.8 ± 36.1	45.8 ± 1.67	52.3 ± 25.4	46.0 ± 1.72

Parse the following content of the diagram in markdown code: | Biomarker | <COLSPAN=2> Overall | <COLSPAN=2> P&D drivers | <COLSPAN=2> Dockworkers | <COLSPAN=2> Office clerks | 
 |  | Mean (±SD) | GM (±GSD) | Mean (±SD) | GM (±GSD) | Mean (±SD) | GM (±GSD) | Mean (±SD) | GM (±GSD) | 
 | --- | --- | --- | --- | --- | --- | --- | --- | --- | 
 | ICAM-1 (ng/mL) | 202 ± 40 | 198 ± 1.22 | 208 ± 42 | 203 ± 1.23 | 216 ± 34 | 213 ± 1.17 | 181 ± 32 | 178 ± 1.19 | 
 | VCAM-1 (ng/mL) | 677 ± 131 | 661 ± 1.21 | 679 ± 144 | 663 ± 1.23 | 673 ± 123 | 658 ± 1.21 | 675 ± 115 | 661 ± 1.19 | 
 | IL-6 (pg/mL) | 1.38 ± 1.20 | 1.09 ± 1.71 | 1.36 ± 0.79 | 1.12 ± 1.59 | 1.50 ± 2.17 | 0.98 ± 2.14

| 1.30 ± 0.82 | 1.11 ± 1.61 | 
 | CRP (mg/L) | 1.66 ± 1.80 | 1.00 ± 2.63 | 1.53 ± 1.51 | 1.01 ± 2.36 | 1.72 ± 1.68 | 0.98 ± 3.18 | 1.87 ± 2.41 | 1.01 ± 2.90 | 
 | 8-OHdG (μg/g creat.) | 55.9 ± 31.5 | 47.7 ± 1.79 | 58.9 ± 32.9 | 49.3 ± 1.90 | 52.8 ± 36.1 | 45.8 ± 1.67 | 52.3 ± 25.4 | 46.0 ± 1.72 |