J Med Assoc Thai 1997; 80 (9):76

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Hematologic Parameters in Thai Subjects Over 50 Years Old
Suwannuruks R Mail, Soisamrong A , Hanchana U , Vanichangkul V , Jopang Y

Advancing age is associated with the decline of hemoglobin, red blood cell count and
other parameters. The conventional normal values of hematologic parameters established by all
age populations may not be suitable for the elderly. This study determined the hematologic parameters
of Thai subjects aged over 50 years by using a fully automated cell counter. No significant
age-related variations of all parameters were found. The MCV of both sexes showed an upward
trend at age over 70. The red blood cell count and hemoglobin levels in males were higher than
females. These, however, were not significant alterations. These hematologic values should be
useful for screening and clinical investigation of the elderly.

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