Statistical parameters Mean Corpuscular Haemoglobin (MCH)pg Mean Corpuscular Haemoglobin Concentration (MCHC)%
  Group-1 Group-2 Group-1 Group-2
  Before After Before After Before After Before After
Mean 23.13 25.76 25.00 26.13 30.17 32.38 31.64 33.50
Median 23.380 27.00 25.00 25.90 30.00 32.00 32.00 34.00
Mode 24.00 27.00 24.00 25.00 30.00 32.00 32.00 34.00
Range 8.50 9.50 6.20 6.90 3.00 4.00 3.00 6.00
S.D 2.68 3.05 1.60 2.04 0.92 1.35 1.08 1.55
T value 2.244 3.369 5.478 5.953
P value* 0.052 0.005 0.000 0.000
*P<0.05 shows a significant change
Table 3: Comparison of MCH & MCHC levels before and after iron supplementation in different age groups.