Table 4.
Sources of information about sexual enhancement (males)/weight loss (females) supplements according to age groups.
| Sexual Enhancement (Males) | Weight Loss (Females) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20–29 | 30–39 | 40–49 | 50–59 | 60–69 | p-Value | 20–29 | 30–39 | 40–49 | 50–59 | 60–69 | p-Value | |
| number | 130 | 239 | 198 | 175 | 184 | 225 | 259 | 199 | 214 | 90 | ||
| Television, radio (%) | 17.7 | 17.6 | 15.2 | 17.7 | 21.7 | 0.577 | 28.0 | 37.5 | 36.2 | 49.1 | 55.6 | <0.001 |
| Newspapers, magazines, flyers (%) | 10.0 | 15.5 | 14.6 | 14.3 | 27.2 | <0.001 | 13.3 | 17.4 | 22.1 | 22.9 | 27.8 | 0.014 |
| Information on the internet (%) | 50.0 | 51.0 | 58.6 | 60.6 | 59.2 | 0.132 | 45.3 | 51.4 | 52.3 | 51.4 | 47.8 | 0.576 |
| Individuals’ experiences/reviews on the internet (%) | 28.5 | 21.3 | 20.7 | 18.3 | 13.0 | 0.017 | 22.2 | 21.2 | 23.6 | 17.3 | 13.3 | 0.208 |
| Reviews on social media (%) | 21.5 | 20.5 | 13.6 | 6.9 | 5.4 | <0.001 | 45.3 | 25.5 | 14.6 | 12.6 | 8.9 | <0.001 |
| Stores (point-of-purchase displays) (%) | 10.8 | 19.2 | 12.1 | 14.9 | 10.9 | 0.068 | 20.4 | 27.8 | 22.6 | 30.4 | 25.6 | 0.121 |
| Clinics (physicians, pharmacists, dietitians) (%) | 9.2 | 9.6 | 7.6 | 4.6 | 3.3 | 0.055 | 2.2 | 3.1 | 1.5 | 0.9 | 0.0 | 0.263 |
| Pharmacists or drugstore clerks (%) | 11.5 | 14.2 | 9.1 | 5.7 | 7.6 | 0.038 | 7.6 | 8.9 | 8.5 | 7.9 | 5.6 | 0.887 |
| Product labels (%) | 6.9 | 15.5 | 11.6 | 6.3 | 7.1 | 0.006 | 18.2 | 20.8 | 23.1 | 21.5 | 13.3 | 0.340 |
| Family, friends or acquaintances (%) | 10.0 | 10.9 | 5.1 | 5.1 | 6.5 | 0.078 | 14.2 | 13.1 | 12.6 | 10.3 | 12.2 | 0.797 |
| Others (%) | 0.8 | 0.8 | 1.5 | 1.7 | 1.1 | 0.901 | 1.8 | 3.1 | 3.0 | 4.7 | 3.3 | 0.550 |
Note: Multiple answers, expressed as percentage. The differences among age groups were examined by Chi-square test (p < 0.05).