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Table 5 Changes in anthropometric and biochemical measures by intervention group1

From: Multiple micronutrient supplementation improves growth and reduces the risk of anemia among infants in Gaza Strip, Palestine: a prospective randomized community trial

Variables

Experimental group (n = 100)

Control group (n = 100)

Unadjusted p Valuea

Adjusted p value2

Baseline

12 months

15 months

Baseline

12 months

15 months

Blood hemoglobin

 Blood hemoglobin (g/dl)

11.42 ± 0.35

11.13 ± 0.52**

11.24 ± 0.44* ‡ c

11.44 ± 0.37

10.92 ± 0.61**

10.81 ± 0.59** c

0.000**

0.02*

Anthropometric measures

 Weight (kg)

7.57 ± 0.79

11.31 ± 0.95** b

12.04 ± 0.95** c

7.65 ± 0.72

10.69 ± 0.82** b

11.05 ± 0.80** c

0.000**

0.004*

 Length (cm)

66.20 ± 1.87

81.50 ± 2.56** b

84.16 ± 1.99** c

66.11 ± 1.92

79.93 ± 1.94** b

82.12 ± 1.69** c

0.000**

0.01*

 WAZ (z score)

−0.12 ± 0.92

0.51 ± 0.72** b

0.57 ± 0.65** c

0.01 ± 0.93

0.04 ± 0.75 b

−0.15 ± .0.70 c

0.000**

0.003*

 LAZ (z score)

−0.25 ± 0.85

−0.01 ± 0.92 b

− 0.21 ± 1.33 c

−0.28 ± 0.97

− 0.57 ± 0.81* b

−0.78 ± 0.66** c

0.001*

0.04*

 WLZ (z score)

0.11 ± 1.01

0.71 ± 0.80** b

1 ± 1.79* c

0.28 ± 1.25

0.42 ± 0.93 b

0.31 ± 0.88 c

0.001*

0.02*

  1. 1 values are mean ± SD
  2. a Undjusted p values are group x time of assessment interaction and were obtained by repeated measures ANOVA analysis. Experimental group, MNP and NMS; Control group, NMS only. WAZ Weight-for-age z score, LAZ Length-for-age z score, and WLZ Weight-for-length z score
  3. Difference between groups at same time point is significant (at the 0.05 level) when letters are same
  4. * Significantly different by paired t-test between baseline and selected time-point in the same intervention group at the 0.05 level
  5. ** Significantly different by paired t-test between baseline and selected time-point in the same intervention group at the 0.001 level
  6. Significantly different by paired t test between month 12 and 15 in the same intervention group at the 0.05 level
  7. 2 p value after adjusting for sex (Model 1) at 12 months, groups were compared using one-way ANCOVA