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. 2019 Nov 18;11(11):2814. doi: 10.3390/nu11112814

Table 1.

Prevalence of dietary supplement use according to age group in the preliminary survey.

20–29 30–39 40–49 50–59 60–69 p-Value
Males, number 4668 6868 7342 6583 6330
 Current users (%) 26.5 32.7 32.8 35.5 38.9 <0.001
 Previous users (%) 22.0 23.4 24.3 23.7 21.6
 Non-users (%) 51.6 43.8 42.9 40.8 39.5
Females, number 7328 6346 5569 5778 4295
 Current users (%) 28.1 36.6 39.3 46.0 47.6 <0.001
 Previous users (%) 30.5 33.9 30.8 26.6 23.6
 Non-users (%) 41.3 29.5 29.8 27.4 28.8

Note: Total number of males was 31,791 and females was 29,316, expressed as percentage. The differences among age groups were examined by Chi-square test (p < 0.05).