. 2018 Jul 14;15(7):1489. doi: 10.3390/ijerph15071489

Table 3.

Popularity of self- and child supplementation among parents who are and are not aware of vitamin D dietary sources and functions (n = 783) (p = 0.05).

Knowledge about Vitamin D Function	Total	Self-Supplementation			Child Supplementation
Knowledge about Vitamin D Function	No.	No.	%	χ ² p	No.	%	χ ² p
Yes	580	167	28.8%	7.9 0.004	246	42.4%	16.9 0.000
No	203	38	18.7%	7.9 0.004	53	26.1%	16.9 0.000
Knowledge about Vitamin D Sources	Total	Self-Supplementation			Child Supplementation
Knowledge about Vitamin D Sources	No.	No.	%	χ ² p	No.	%	χ ² p
Yes	389	118	30.3%	6.9 0.008	169	43.4%	9.1 0.003
No	394	87	22.1%	6.9 0.008	130	33.0%	9.1 0.003