Table 2.
The Amount of Caffeine Beverage and Motivations for Caffeine Consumption by Grade Level
| Grade | Calculated caffeine intake (mg) | Calculated caffeine intake (day) | Motivations of caffeine intake |
||
|---|---|---|---|---|---|
| Academic performance | Preferred food | Workout performance | |||
| 1st year of pre-med | 306.7±236.8 | 3.5±2.0 | 31 (40.8) | 60 (78.9) | 4 (5.3) |
| 2nd year of pre-med | 263.1±404.6 | 3.5±2.0 | 32 (50.0) | 36 (56.3) | 9 (14.1) |
| 1st year of medicine | 314.5±278.2 | 4.9±2.3 | 51 (90.0) | 21 (33.3) | 3 (4.8) |
| 2nd year of medicine | 278.6±244.2 | 4.9±2.5 | 60 (82.2) | 31 (42.5) | 5 (6.8) |
| 3rd year of medicine | 239.2±214.0 | 4.4±2.2 | 30 (56.6) | 23 (43.4) | 8 (15.1) |
| 4th year of medicine | 192.5±185.4 | 4.4±2.2 | 16 (50.0) | 16 (50.0) | 6 (18.8) |
| Total | 274.6±276.5 | 4.25±2.2 | 220 (60.9) | 187 (51.8) | 35 (9.7) |
Data are presented as mean±standard deviation or number (%).