['Analysis of s-ferritin is recommended for the diagnosis of depleted iron stores, but other parameters are still in use. The objective of this study was to determine the accuracy for s-iron, s-transferrin, transferrin saturation, b-hemoglobin and erythrocyte-MCH in diagnosing depleted iron stores.', 'Data was collected from the Health Study of Nord-Trøndelag, 1995-1997. Blood samples from 3029 women aged 20-45 were analysed for iron status. In absence of bone marrow aspirate, s-ferritin was used as the standard for iron deficiency.', 'Highest diagnostic accuracy was found for s-transferrin. S-iron did not contribute with significant independent information.'] Do [ Diagnosis of depleted iron stores -- use s-iron ]?