TABLE 3.

Percentages of calcium obtained from supplemental sources among calcium supplement users across age/sex groups of Canadians in 2004 and 2015¹

	2004		2015
Age and sex groups	n	%	n	%
Children2
1–3 y	693,228	13.6 ± 0.8	376,484	14.1 ± 3.0
4–8 y		14.4 ± 0.6		11.6 ± 1.3
Females
9–13 y	171,332	13.5 ± 0.9	100,994	11.2 ± 2.3
14–18 y	148,385	20.9 ± 1.6	86,898	15.3 ± 2.2*
19–30 y	140,666	28.4 ± 1.9	357,322	18.8 ± 3.1*
31–50 y	147,321	31.9 ± 1.2	1,187,668	28.0 ± 1.8*
51–70 y	473,677	42.3 ± 1.0	1,911,359	34.3 ± 1.5*
≥70 y	530,612	41.5 ± 1.1	744,350	43.1 ± 1.6
Males
9–13 y	953,905	12.7 ± 0.7	92,969	9.6 ± 1.7
14–18 y	1,557,999	15.2 ± 1.1	78,315	15.9 ± 3.8
19–30 y	908,912	16.4 ± 1.4	325,322	7.1 ± 1.7*
31–50 y	1,612,317	19.9 ± 1.3	877,011	19.3 ± 2.2
51–70 y	286,693	27.8 ± 1.3	998,269	23.2 ± 1.5*
≥70 y	658,044	30.4 ± 1.5	319,359	32.9 ± 1.8
All ages	8,283,091	29.0 ± 0.4	7,456,320	26.8 ± 0.7*

¹Values are means ± SEs and the analyses were conducted separately for 2004 and 2015 data sets (21, 23).

²The total n for children aged 1–8 y.

^*Significant differences (P < 0.05) in % contributions between 2004 and 2015 by age groups were tested with use of a confidence interval overlapping technique (24).