patients greater than or equal to 12 years of age ( n = 34 ) had significantly lower zinc levels than those less than 12 years ( 74.5 +/- 8.4 vs. 80.3 +/- 10.3 micrograms/dl , p less than .01 ) , and children with homozygous scd ( hb ss , n = 55 ) had a more pronounced deficiency than those with a variant hemoglobinopathy ( 76.3 +/- 8.9 vs. 81.5 +/- 11.5 , micrograms/dl , p less than .05 ) .
C0002895
hb ss
C0019045
hemoglobinopathy