[Reference intervals of hematologic parameters in the elderly].

Red blood cell counts, haemoglobin, haematocrit, MCV, MCH, MCHC, RDW, platelet count, plateletcrit, platelet distribution width, white blood cell count, white cell differential count (absolute and per cent) and serum iron were studied in 167 people (96 women and 71 men) aged between 60 and 89 years. Significant differences between both sexes were found for all values except RDW, platelet count and percent differential count of white cells. The intervals comprising the central 95% of each values were calculated. In the time of the analysis, only haemoglobin concentration in men showed significant decrease with ageing, although inverse correlation with age was observed for haemoglobin, red cell count and haematocrit in men, and for platelet count in women.