Table 2.
Demographic characteristics of the sample
| Variable | Participants, no. (%) |
| Age (in years), mean (SD) | 16.5 (0.8) |
| Sex | |
| Female | 370 (44.4) |
| Male | 463 (55.6) |
| Awareness that energy drinks contain high amounts of caffeine | |
| Yes | 792 (95.1) |
| No | 41 (4.9) |
| Use of caffeinated energy drink | |
| Current use* | 293 (35.2) |
| Past use | 232 (27.8) |
| Non-use | 308 (37.0) |
| Grade† | |
| Below average | 233 (28.0) |
| Average | 310 (37.2) |
| Above average | 290 (34.8) |
| Stress regarding grades‡ | |
| Below average | 218 (26.2) |
| Average | 375 (45.0) |
| Above average | 240 (28.8) |
| Father’s education | |
| High school degree or lower | 307 (36.9) |
| College degree | 454 (54.5) |
| Graduate degree | 72 (8.6) |
| Mother’s education | |
| High school degree or lower | 450 (54.0) |
| College degree | 341 (40.9) |
| Graduate degree | 42 (5.0) |
| Parents’ socioeconomic status | |
| Below average | 206 (24.7) |
| Average | 419 (50.3) |
| Above average | 208 (25.0) |
| Parents’ health status | |
| Below average | 377 (45.3) |
| Average | 376 (45.1) |
| Above average | 71 (9.6) |
| Previous health education on safe drug use | |
| More than three times | 75 (9.0) |
| Two or three times | 260 (31.2) |
| One time | 158 (19.0) |
| None | 340 (40.8) |
| Total | 833 (100.0) |
*Current use of caffeinated energy drinks as needed or habitually.
†Academic reports.
‡Pressure felt to academically achieve.