Statistical parameters Haematocrit(Hct) age % Mean Corpuscular Volume(MCV) fl
  Group-1 Group-2 Group-1 Group-2
  Before After Before After Before After Before After
Mean 32.79 37.65 33.10 36.33 78.38 81.17 80.46 81.49
Median 32.85 38.33 33.30 36.50 79.10 80.50 80.20 81.50
Mode 28.30 35.80 33.00 33.90 70.40 78.00 83.00 68.00
Range 7.90 6.30 8.20 6.50 15.60 13.90 26.40 26.30
S.D 2.69 2.08 2.24 1.80 5.30 4.66 7.88 7.80
T value 8.551 13.462 2.728 3.116
P value* 0.000 0.000 0.023 0.008
*P<0.05 shows a significant change
Table 2: Comparison of HCT & MCV levels before and after iron supplementation in different age groups.