Outcome or Subgroup

Studies

Participants

Statistical Method

Effect Estimate

4.1 Haemoglobin level

8

2551

Mean Difference (IV, Random, 95% CI)

0.22 [0.01, 0.43]

4.1.1 Non Severely Anaemic

5

1527

Mean Difference (IV, Random, 95% CI)

0.29 [0.09, 0.49]

4.1.2 Severely Anaemic

3

1024

Mean Difference (IV, Random, 95% CI)

0.12 [-0.36, 0.61]

4.2 Serum Ferritin level

6

1627

Mean Difference (IV, Random, 95% CI)

7.43 [0.02, 14.84]

4.2.1 Non Severely Anaemic

5

1488

Mean Difference (IV, Random, 95% CI)

9.61 [1.78, 17.44]

4.2.2 Severely Anaemic

1

139

Mean Difference (IV, Random, 95% CI)

-4.69 [-14.69, 5.31]

4.3 Iron Intake

9

1187

Mean Difference (IV, Random, 95% CI)

1.88 [0.95, 2.81]

4.3.1 Animal Source meals

2

252

Mean Difference (IV, Random, 95% CI)

0.34 [0.07, 0.61]

4.3.2 Non Animal Source meals

7

935

Mean Difference (IV, Random, 95% CI)

2.48 [1.15, 3.82]