TABLE 3.

Proportion of Total Caffeine Intake From Different Sources, by Age Group: NHANES 1999–2010

Age Group	1999–2000	2001–2002	2003–2004	2005–2006	2007–2008	2009–2010
2–5 years
Flavored dairya	10.5 ± 1.9	10.0 ± 2.3	9.2 ± 2.6	12.6 ± 1.2	15.2 ± 2.6	17.0 ± 2.3
Sweetened grainsb	7.9 ± 1.9	6.2 ± 1.5	6.6 ± 2.1	9.7 ± 1.7	7.9 ± 1.2	14.8 ± 2.8
Sugars/sweetsa,c	5.0 ± 1.3	2.4 ± 0.8	2.4 ± 0.6	6.1 ± 1.3	5.3 ± 1.0	7.0 ± 1.3
Coffeeb	2.1 ± 1.5	0.9 ± 0.6	3.8 ± 3.1	5.5 ± 2.5	6.1 ± 3.5	4.6 ± 1.8
Tea	27.1 ± 8	36.2 ± 6.6	46.1 ± 8.9	23.4 ± 3.7	32.0 ± 5.1	29.4 ± 5.0
Sodaa	47.2 ± 5.8	44.1 ± 5.1	31.3 ± 3.3	42.6 ± 4.2	33.4 ± 3.9	26.8 ± 3.7
Energy drinks	0.0 ± 0.0	0.0 ± 0.0	0.5 ± 0.6	0.0 ± 0.0	0.0 ± 0.0	0.0 ± 0.0
6–11 years
Flavored dairy	4.9 ± 1.3	7.4 ± 1.1	5.5 ± 1.0	8.9 ± 0.7	5.9 ± 0.7	9.6 ± 0.9
Sweetened grainsa	4.3 ± 1.1	4.7 ± 0.5	4.4 ± 0.7	9.2 ± 1.3	4.1 ± 0.5	8.8 ± 0.7
Sugars/sweets	3.0 ± 0.5	4.3 ± 0.6	2.2 ± 0.4	3.9 ± 0.6	2.7 ± 0.5	4.3 ± 0.6
Coffeeb	2.2 ± 1.1	5.4 ± 3.4	1.5 ± 0.6	4.5 ± 2.1	8.0 ± 2.3	8.5 ± 2.6
Tea	25.1 ± 8.0	21.1 ± 3.2	19.9 ± 4.5	21.9 ± 3.5	29.7 ± 5.6	29.7 ± 5.9
Sodad	60.4 ± 5.2	57.1 ± 3.7	65.2 ± 4.7	50.5 ± 3.8	44.3 ± 7.4	39.1 ± 3.8
Energy drinks	0.0 ± 0.0	0.0 ± 0.0	1.5 ± 1.3	0.1 ± 0.1	5.3 ± 2.8	0.0 ± 0.0
12–16 years
Flavored dairyb	2.3 ± 0.3	2.8 ± 0.4	1.4 ± 0.3	1.7 ± 0.4	1.5 ± 0.3	2.5 ± 0.5
Sweetened grains	2.2 ± 0.5	2.8 ± 0.3	2.1 ± 0.3	2.9 ± 0.4	2.0 ± 0.2	3.4 ± 0.9
Sugars/sweets	1.5 ± 0.1	1.7 ± 0.3	1.9 ± 0.3	2.0 ± 0.3	1.5 ± 0.3	1.3 ± 0.3
Coffeed	5.1 ± 1.9	4.0 ± 0.8	10.3 ± 2.7	11.4 ± 1.8	21.3 ± 3.3	12.2 ± 3.8
Tea	24.2 ± 3.4	22.8 ± 2.4	22.5 ± 4.5	21.4 ± 2.1	24.4 ± 3.7	31.8 ± 9.1
Sodad	64.6 ± 4.1	65.3 ± 2.3	61.5 ± 3.5	58.9 ± 2.1	44.1 ± 6	45.8 ± 7.7
Energy drinksa	0.0 ± 0.0	0.6 ± 0.5	0.3 ± 0.3	1.7 ± 1.0	5.2 ± 2.3	3.0 ± 1.2
17–18 years
Flavored dairy	0.8 ± 0.2	0.8 ± 0.1	1.0 ± 0.2	0.6 ± 0.2	0.9 ± 0.4	1.3 ± 0.3
Sweetened grains	1.1 ± 0.4	1.6 ± 0.4	1.2 ± 0.3	1.0 ± 0.2	0.8 ± 0.2	1.1 ± 0.2
Sugars/sweets	0.9 ± 0.2	1.1 ± 0.2	1.4 ± 0.4	0.8 ± 0.1	1.0 ± 0.4	1.5 ± 0.4
Coffeeb	15.0 ± 4.7	12.7 ± 4.0	24.9 ± 7.6	17.3 ± 6.9	27.1 ± 4.5	28.6 ± 4.8
Tea	19.9 ± 4.4	20.2 ± 3.6	16.9 ± 6.3	24.2 ± 6.8	32.2 ± 4.8	25.4 ± 5.8
Sodad	62.3 ± 3.8	63.5 ± 4.2	53.9 ± 6.2	52.2 ± 7.8	29.4 ± 7.9	39.9 ± 4.9
Energy drinksc,d	0.0 ± 0.0	0.1 ± 0.1	0.3 ± 0.3	4.0 ± 2.3	8.4 ± 3.1	2.2 ± 1.2
19–22 years
Flavored dairy	0.8 ± 0.3	0.5 ± 0.1	0.4 ± 0.1	0.5 ± 0.1	0.5 ± 0.2	0.6 ± 0.1
Sweetened grains	0.8 ± 0.2	1 ± 0.5	0.8 ± 0.3	0.8 ± 0.2	0.9 ± 0.1	1.1 ± 0.3
Sugars/sweetsb	0.7 ± 0.2	2.2 ± 0.7	1.9 ± 0.7	0.9 ± 0.2	0.8 ± 0.3	0.8 ± 0.2
Coffeed	14.1 ± 3.3	20.9 ± 4.1	30.1 ± 6.4	20.5 ± 4.1	33.2 ± 5.2	34.2 ± 4.2
Tea	21.3 ± 4.1	21.5 ± 5.7	15.5 ± 5.3	33.7 ± 7.2	26.9 ± 3.2	18.7 ± 2.9
Sodad	61.5 ± 5.9	53.3 ± 4.9	50.1 ± 3.9	42.7 ± 4.8	34 ± 4.7	33.5 ± 4.4
Energy drinksd	0.0 ± 0.0	0.2 ± 0.1	0.5 ± 0.5	0.6 ± 0.3	3.6 ± 1.1	10.3 ± 3

Data are presented as proportions +/− SEs.

^aIndicates significant linear trend, P < .01.

^bIndicates significant linear trend, P < .05.

^cIndicates significant quadratic trend, P < .05.

^dIndicates significant linear trend, P < .001.