الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
This cross sectional study was conducted in a plastic factory in
Menoufia governorate.
This study included an exposed group of plastic workers (180) who
accepted participating in the study and a control (unexposed) group (180)
from the worker’s relatives. Both groups were matched for age, sex,
residence, marital status, income and educational level. The exposed group
and controls were interviewed using a predesigned questionnaire followed
by general and local examination.
Laboratory investigations in the form of complete blood count, liver
enzymes (SGOT & SGPT), prothrombin time, serum total bilirubin, serum
albumin and viral markers were done in addition to abdominal
ultrasonography.
In this study, the presence of GIT manifestations in the form of heart
burn and diarrhea, the presence of bleeding tendencies, ecchymoses and
change in the colour of fingers suggestive of Rayaund’s phenomenon were
statistically significant in the exposed versus the control group (P < 0.05).
In this study, the presence of elevated liver enzymes (SGOT & SGPT),
low hemoglobin concentration, high WBCs counts, were statistically
significant in the exposed versus the control group (P <0.05).
On application of Pearsons correlation test between the duration of
employment (in years) and liver functions & CBC among the exposed
group, significant finding was obtained only for SGOT (P <0.05).
In this study, exposed workers in the plastic grinding sector have higher
incidence of headache, pallor, elevated SGOT level, low hemoglobin
concentration (P < 0.05) in comparison to exposed workers in other sections
of the factory.
from the results obtained in this study, pre-employment and periodic
physical examination and investigations should include estimation of the
liver function tests and complete blood picture combined with abdominal
ultrasonography in order to pick and exclude affected workers.