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

Table 3 Comparison of incidence rate ratios (IRRs) of morbidities for 4 months between the MNP supplementation groups and children without MNP supplementation

Multiple micronutrient powder	Diarrhea		ALRI		Cough		Fever
Multiple micronutrient powder	IRR (95 % CI)	p-value	IRR (95 % CI)	p-value	IRR (95 % CI)	p-value	IRR (95 % CI)	p-value
Age 6–11 months
None^a	Ref		Ref		Ref		Ref
2 Months	1.28 (1.08, 1.51)	0.004	2.22 (1.30, 3.80)	0.003	1.08 (0.97, 1.21)	0.175	1.04 (0.92, 1.17)	0.561
4 Months	1.26 (1.08, 1.46)	0.003	0.94 (0.52, 1.69)	0.839	1.11 (1.01, 1.23)	0.040	1.03 (0.92, 1.15)	0.586
Age 12–17 months
None^a	Ref		Ref		Ref		Ref
2 Months	1.00 (081, 1.22)	0.978	1.75 (1.15, 2.64)	0.008	1.05 (0.92, 1.19)	0.485	0.97 (0.84, 1.12)	0.691
4 Months	0.94 (0.76, 1.17)	0.579	0.62 (0.35, 1.09)	0.098	0.98 (0.85, 1.11)	0.750	0.95 (0.81, 1.10)	0.482
Age 18–24 months
None^a	Ref		Ref		Ref		Ref
2 Months	0.81 (0.61, 1.01)	0.062	4.20 (2.32, 7.62)	0.000	0.92 (0.80, 1.07)	0.273	0.87 (0.75, 1.01)	0.075
4 Months	0.83 (0.65, 1.07)	0.149	0.76 (0.28, 2.08)	0.598	0.83 (0.70, 0.98)	0.024	0.70 (0.58, 0.84)	0.000

IRR estimated with generalized linear models with a Poisson distribution. IRR means incidence rate ratio. All are adjusted by gender, stunting, underweight wasting and food security status
^aNone: Morbidity surveillance data from MAL-ED birth cohort children (n = 213) without MNP supplementation from the same age group

ISSN: 2055-0928