CRP and Iron deficiency anemia: An analysis including only patients with a BMI between 18.5 and 24.9 kg/m2 and hs-CRP values < 0.10 (n = 773) revealed a higher frequency of iron deficiency in women who menstruate (44.85%) than in women who do not menstruate (9.57%) and men (2.08%) and a higher frequency in women who menstruate than in women who do not menstruate (X2(df = 2) = 145.5769; p < 0.0001).