Abstract
We evaluated influences of maturation, aging, sex difference and other clinical factors on red blood cell counts (RBC), hemoglobin concentrations (Hb), and hematocrits (Ht) in hospitalized patients at oral surgery divisions. Subjects included 4002 patients who were hospitalized from January 1992 to December 1997 at the First and Second Divisions of Oral Surgery, Kyushu Dental College Hospital, Kitakyushu, Japan. RBC, Hb, and Ht were apparently increased in men as compared with those in women. The indices of mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC) also were higher in men than in women. RBC did not change during a period of growth, but Hb and Ht were increased, resulting increases in MCH and MCV. Aging decreased RBC, Hb, and Ht. Malnutrition, liver dysfunction, and inflammation also decreased Hb. These observations concerning the effects of maturation, aging and sex differences on RBC, Hb, and Ht obtained from dental inpatients seem identical with those from general populations. Inflammations in dental patients with oral inflammatory diseases or malignant tumors might induce anemia.
