TABLE 2. Prevalence of use of most frequently used dietary supplement product types in the past 30 days among children and adolescents (persons aged ≤19 years), by age group — United States, 2017–2018.
| Product type | Age group (years), % (95% CI) |
P-value for difference by age* | ||||
|---|---|---|---|---|---|---|
| All (n = 3,683) | <2 (n = 591) | 2–5 (n = 784) | 6–11 (n = 1,115) | 12–19 (n = 1,193) | ||
| Multivitamin-mineral |
23.8 (20.3–27.7) |
11.0 (7.3–15.5) |
34.6 (28.8–40.7) |
29.5 (24.5–34.8) |
17.3 (13.7–21.4) |
<0.001 |
| Single ingredient vitamin D supplement |
3.6 (2.2–5.5) |
5.4 (2.8–9.3) |
1.7 (0.6–3.9) |
1.8 (0.8–3.5) |
5.4 (2.9–9.0) |
<0.001 |
| Single ingredient vitamin C supplement |
3.0 (1.9–4.4) |
1.1 (0.1–4.6) |
2.0 (0.7–4.4) |
2.4 (1.6–3.5) |
4.2 (2.1–7.6) |
0.083 |
| Probiotic |
1.8 (1.1–2.8) |
1.9 (0.7–4.3) |
3.7 (1.9–6.2) |
2.0 (0.7–4.6) |
0.8 (0.3–1.7) |
0.020 |
| Melatonin |
1.3 (0.7–2.2) |
0.0 (0.0–0.6) |
1.4 (0.5–3.0) |
1.3 (0.7–2.3) |
1.5 (0.5–3.2) |
0.435 |
| Omega-3 fatty acid |
1.3 (0.6–2.4) |
0.5 (0.1–1.6) |
1.4 (0.5–3.0) |
1.2 (0.3–3.1) |
1.4 (0.3–3.9) |
0.707 |
| Botanical |
1.1 (0.6–1.9) |
0.5 (0.1–1.8) |
0.5 (0.1–1.3) |
0.3 (0.0–0.9) |
2.1 (0.8–4.6) |
0.001 |
| Multivitamin | 1.0 (0.5–1.6) | 1.2 (0.3–3.2) | 0.8 (0.2–2.0) | 0.6 (0.1–1.6) | 1.3 (0.6–2.4) | 0.361 |
Abbreviation: CI = confidence interval.
* p-values calculated using F-based second-order Rao-Scott test.