In 26 of the 27 publications that included efficacy results, FCM treatment (in most cases a single dose) was associated with improvement in anaemia and/or different iron status parameters, including improvements in levels of haemoglobin (22 publications), ferritin (12 publications), mean corpuscular volume (10 publications), iron (six publications) and transferrin saturation (five publications) (Table 1). Here, TF is linked to anemia (phenotype).