title: Some Biochemical and Hematological Parameters among Petrol Station Attendants: A Comparative Study.
abstract: OBJECTIVE
  To describe selected biochemical and hematological parameters (blood picture, liver enzymes, and kidney functions) in petrol station attendants in Mansoura city.
  
  
  METHODS
  This is a comparative cross-sectional study. The exposed group included 102 petrol station attendants. They were compared to a matched group of healthy 102 male service and office workers at the Faculty of Medicine, Mansoura University. The results of blood picture, liver enzymes, and kidney functions were compared between both groups.
  
  
  RESULTS
  Mean Red Blood Cells (RBCs) count, hemoglobin level, and Hematocrit (HCT) level were significantly lower in petrol station attendants than the comparison group. All other blood picture parameters showed nonsignificant difference between both groups. Liver enzymes, renal functions, serum albumin, and total protein showed statistically nonsignificant difference between both groups except for alanine aminotransferase (ALT) which was significantly higher in petrol station attendants.
  
  
  CONCLUSIONS
  Some laboratory parameters among petrol station attendants showed changes that could be attributed to workplace exposure and should be given attention at preemployment and periodic medical examination.
authors.affiliation: Public Health & Community Medicine Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
authors.forename: Hala Samir
authors.initials: HS
authors.lastname: Abou-ElWafa
authors.affiliation: Public Health & Community Medicine Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
authors.forename: Ahmed A
authors.initials: AA
authors.lastname: Albadry
authors.affiliation: Public Health & Community Medicine Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
authors.forename: Abdel-Hady
authors.initials: AH
authors.lastname: El-Gilany
authors.affiliation: Department of Medical Biochemistry, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt.
authors.forename: Fagr B
authors.initials: FB
authors.lastname: Bazeed
mesh_terms: D000328:Adult; D001772:Blood Cell Count / Q000706:statistics & numerical data*; D001794:Blood Pressure / Q000502:physiology; D004534:Egypt / Q000453:epidemiology; D006400:Hematocrit / Q000706:statistics & numerical data; D006801:Humans; D007677:Kidney Function Tests / Q000706:statistics & numerical data*; D008111:Liver Function Tests / Q000706:statistics & numerical data*; D008297:Male; D016273:Occupational Exposure / Q000706:statistics & numerical data*; D000066388:Oil and Gas Industry / Q000706:statistics & numerical data*; D059392:Petroleum Pollution / Q000706:statistics & numerical data*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity