Motor development related to duration of exclusive breastfeeding, B vitamin status and B12 supplementation in infants with a birth weight between 2000-3000 g, results from a randomized intervention trial

Table 3 Determinants of B vitamin in infants aged 6 months (n = 66) by multiple linear regression^a

Independent variables	Serum cobalamin		Serum folate		Plasma PLP		Plasma riboflavin		Plasma total homocysteine		Plasma methylmalonic acid
	B	p	B	p	B	p	B	p	B	p	B	p
Gender (boys, girls)	25.65	0.67	-3.53	0.55	8.79	0.61	-0.32	0.93	-0.01	0.99	-0.03	0.90
Weight^b	33.44	0.23	0.83	0.76	0.61	0.94	3.00	0.09	-0.07	0.80	-0.15	0.15
Exclusive breastfeeding^c	-44.32	0.001	-0.76	0.53	-17.53	<0.001	-4.16	<0.001	0.55	<0.001	0.12	0.008

^aThe regression model contains folic acid and iron supplementations as independent variables, in addition to the parameters listed in the table
^bInfant weight at 6 months, quartiles
^cExclusive breastfeeding, number of months with exclusive breastfeeding from birth to 6 months
PLP Pyridoxal 5´- phosphate, B: regression coefficient

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