Skip to main content

Table 2 Change of hemoglobin level after MNP supplementation

From: Effect of micronutrient powder supplementation for two and four months on hemoglobin level of children 6–23 months old in a slum in Dhaka: a community based observational study

Age categories

Baseline

Endline

DID

p-value

% enhancement by 4 months MNP supplementation

2 months MNP (A)

4 months MNP (B)

p-value

2 months MNP (C)

4 months MNP (D)

p-value

n

Mean (95 % CI)

n

Mean (95 % CI)

n

Mean (95 % CI)

n

Mean (95 % CI)

6–11 months

173

10.64 (10.47, 10.80)

214

10.78 (10.62, 10.95)

0.225

94

10.46 (10.17, 10.74)

142

11.02 (10.87, 11.17)

0.0003

0.41 (0.03, 0.79)

0.037

3.8

12–23 months

266

10.53 (10.36, 10.70)

165

10.78 (10.55, 11.01)

0.079

162

10.77 (10.56, 10.98)

110

11.29 (11.04, 11.53)

0.0016

0.27 (–0.16, 0.70)

0.214

2.5

  1. To assess the effect of the 4 months MNP supplementation we used difference-in-difference (DID) technique is as follows:
  2. Yit = β0 + β1 Time + β2 Group + δ (Time × Group) + β3 Gender + β4 Food security + β5 Stunted + β6 (Vitamin A capsule given) + ε
  3. Where,
  4. Yit = Outcome variable of interest for individual i at time t
  5. Time = (1) if endline and (0) if baseline
  6. Group = (1) if 4 months MNP supplementation and (0) if 2 months MNP supplementation
  7. δ = The effect of the 4 months MNP supplementation
  8. ε = Error term
  9. Effect of 4 months MNP supplementation (TE): [(B − A) − (D − C)] Where, A = baseline mean value for the 4 months MNP supplementation group; B = endline mean value for the 4 months MNP supplementation group; C = baseline mean value for the 2 months MNP supplementation group; D = endline mean value for the 2 months MNP supplementation group. The percent enhancement by 4 months MNP supplementation is calculated as: [(TE/A) × 100]