Iron parameters (at diagnosis) in HH patients from Porto, Alabama and Nord-Trøndelag.

Transferrin saturation (TfSat) is presented as arithmetic mean ± standard deviation; serum ferritin (SF) and total body iron stores (TBIS) are presented as geometric mean ± standard error. Minimum-maximum values are in parenthesis. TBIS was available in 34 males from Porto, 32 from Alabama and 38 from Nord-Trøndelag and in 13 females from Porto, 23 from Alabama and 12 from Nord-Trøndelag.Statistically significant differences (P value indicated) were tested among groups using One-way Anova.