Very high vitamin D supplementation rates among infants aged 2 months in Vancouver and Richmond, British Columbia, Canada

Table 2 Feeding practices and vitamin D supplementation of infants aged two months

Feeding practice	Feeding Practice	Vitamin D Supplement	< 300 IU/d Vitamin D⁵
	% (n)	% yes (n)	% (n)
Total	100.0 (577)	79.9 (461)	28.9 (167)
All breast milk¹	57.4 (331)	91.2 (302)^a*	33.5 (111)^a
Mixed breast milk and formula	32.2 (186)	79.0 (147)^b	22.0 (41)^b
≥75% breast milk²	53.8 (100)	86.0 (86)	21.0 (21)
50- < 75% breast milk³	20.4 (38)	84.2 (32)	26.3 (10)
< 50% breast milk⁴	25.8 (48)	60.4 (29)	20.8 (10)
Infant formula	10.4 (60)	20.0 (12)^c	25.9 (15)^ab

¹Only breast milk in the past week
² ≤2 feedings of other liquids/food per day
³3-4 feedings of other liquids/food per day
⁴ > 4 feedings of other liquids/food per day
⁵Total daily vitamin D intake from supplement and formula
*Rows showing different superscripts are significantly different from each other; χ² P < 0.001

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