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Ethnic differences in peak expiratory flow rate in Birmingham factory workers.
  1. S. H. Jackson,
  2. D. G. Beevers,
  3. J. K. Cruickshank,
  4. L. T. Bannan


    Among 698 Birmingham factory workers, Asian men (n = 75) tended to have lower peak expiratory flow rates (PEFR) than black (n = 156) or white (n = 138) men when age, height and smoking habits were accounted for. This trend reached statistical significance in Asian females (n = 20), despite a small sample size. There were no significant differences in PEFR between blacks and whites of either sex.

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