| PARAMETER |
NON-OILWORKERS (N=30)
Range |
Mean ± SD |
OIL WORKERS (N=303)
Range |
Mean ±SD |
P-Value(2-tailed) |
Normal range & Unit
of parameter |
| AGE |
35.00-59.00 |
47.37 ± 6.74 |
28.00-60.00 |
43.30 ± 7.03 |
0.003 |
|
| SERVICE PERIOD** |
3.00-34.00 |
20.03 ± 8.77 |
3.00-34.00 |
16.18 ± 6.42 |
0.003 |
Up to 35Yrs |
| ESR |
1.00-36.00 |
6.60 ± 7.81 |
1.00-100.00 |
10.94 ± 11.82 |
0.05 |
0-7mm/hr (M), 0-10mm/hr (F) |
| Hb |
9.10-14.90 |
13.01 ± 1.54 |
7.60-21.10 |
13.19 ± 1.31 |
0.487 |
13-18g/dl (M), 12-15g/dl (F) |
| PCV |
30.00-49.00 |
42.70 ± 5.01 |
25.00-58.00 |
43.31 ± 4.09 |
0.448 |
40-50%(M), 36-47%(F) |
| PLATELETS × 109 |
141.00-382.00 |
239.23 ±57.30 |
75.00-430.00 |
232.41± 63.18 |
0.570 |
150-400 ×109 /L |
| TOTAL WBC × 109 |
4.90-11.00 |
7.36 ± 1.64 |
3.20-86.00 |
7.07 ± 6.61 |
0.813 |
4.0-11.0 ×109 /L |
| LYMPHOCYTE |
25.00-57.00 |
41.60 ± 10.16 |
18.00-75.00 |
52.28 ± 9.25 |
0.000 |
|
| GRANULOCYTE |
43.00-75.00 |
58.40 ± 10.16 |
25.00-82.00 |
47.72 ± 9.24 |
0.000 |
|
| T-test was the statistical tool applied. *Indicates statistically significant difference [** Service Period = number of years the worker had been engaged in the work, amounting to his/her cumulative years of exposure to the hazards of his/her workplace (i.e. exposure period). Presently, 35yrs is the maximum service period that qualifies an average civil servant for retirement in Nigeria, and is therefore considered as the upper limit of normal for service period in this report] Key for letters in Normal Range: M = Males., F = Females. |
|
