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ORIGINAL ARTICLE
Year : 2015  |  Volume : 24  |  Issue : 3  |  Page : 256-260

Hematological indices in automotive technicians in Nnewi, South-East Nigeria


1 Medical laboratory Science Department, College of Health Sciences, Nnamdi Azikiwe University, Nnewi Campus, Anambra State, Nigeria
2 Haematology Department, Nnamdi Azikiwe University Teaching Hospital, Nnewi, Anambra State, Nigeria
3 Chemical Pathology department, University of Nigeria Teaching Hospital, Enugu, Enugu State, Nigeria

Correspondence Address:
Nkwazema Amobi
Chemical Pathology department, University of Nigeria Teaching Hospital, Enugu, Enugu State
Nigeria
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1115-2613.278936

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BACKGROUND: Occupational exposure to petroleum products is known to be associated with a number of health risks as well as adverse effects on haematological indices. OBJECTIVE: To evaluate the effect of exposure to petroleum products on haematological parameters in automobile mechanics in Nnewi,south-east Nigeria. SUBJECTS AND METHODS: Fifty (50) automobile technicians and 50 healthy controls participated in the study. Full blood count was performed for each participant using the automated Sysmex haemocytometer (Model PCE 210) while data analysis was done using the SPSS (statistical package for social sciences) version 16 computer soft ware (Chicago, IL, Inc.). Results were expressed as frequencies,means and standard deviations;comparison of haematological parameters was made between subjects and controls and at different durations of exposure using the students't-test and analysis of variance (ANOVA), respectively. The level of statistical significance was p<0.05 (at 95% CI). Ethical approval was obtained from the Institutional review board and all participants gave informed consent. RESULTS: There red blood cell count (RBC) and haematocrit were significantly lower while the platelet count was significantly higher in test subjects compared with controls (p values; 0.04, 0.03 and 0.01, respectively). Correspondingly, the mean cell volume (MCV) and mean cell haemoglobin (MCH) were significantly lower in test subjects compared with controls (p=0.02 and 0.03, respectively).The red cell count, MCV and platelet count significantly decreased with increasing duration of work exposure (p=0.001,respectively). CONCLUSION: Occupational exposure to petroleum products adversely affects blood counts,with a significant decrease in RBC,MCV and platelet count as duration of exposure increases.


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