Table 1.
Demographic Characteristics of participants and their association with supplement use.
| Demographic | Total | Non-User | User | p a |
|---|---|---|---|---|
| Total (n) | 1306 | 571 (44) | 731 (56) | |
| Sex | ||||
| Female (n(%)) | 1026 (79) | 422 (75) | 601 (83) | <0.001 |
| Male (n(%)) | 267 (21) | 144 (25) | 122 (17) | |
| Age (Years) | ||||
| Mean (SD) | 20.5 (4.5) | 20.4 (4.3) | 20.7 (4.7) | 0.212 b |
| 17–19 (n(%)) | 769 (59) | 340 (60) | 426 (59) | |
| 20–25 (n(%)) | 421 (33) | 188 (33) | 233 (32) | 0.310 |
| ≥26 (n(%)) | 107 (8) | 39 (7) | 67 (9) | |
| BMI | ||||
| Mean (SD) | 22.3 (3.2) | 22.4 (3.1) | 22.3 (3.2) | 0.758 b |
| Underweight (<18.5kg/m2) (n(%)) | 75 (6) | 35 (7) | 40 (6) | |
| Healthy (18.5–24.9 kg/m2) (n(%)) | 929 (78) | 400 (77) | 527 (79) | |
| Overweight (25–29.9 kg/m2) (n(%)) | 160 (14) | 74 (14) | 86 (13) | 0.849 |
| Obese (≥30) (n(%)) | 27 (2) | 12 (2) | 15 (2) | |
| Nationality | ||||
| Australian (n(%)) | 1090 (85) | 477 (84) | 610 (86) | |
| Asian (n(%)) | 98 (8) | 47 (8) | 50 (7) | 0.556 |
| Other (n(%)) | 90 (7) | 43 (8) | 47 (7) | |
| Maternal Education | ||||
| Year 12 or less (n(%)) | 499 (41) | 229 (42) | 269 (39) | |
| Trade/Apprenticeship or Certificate/Diploma (n(%)) | 271 (22) | 116 (22) | 155 (23) | 0.565 |
| University Degree or Higher (n(%)) | 457 (37) | 195 (36) | 259 (38) | |
a p values determined using chi square for categorical variables and; b One-Way Anova for continuous variables; SD = Standard Deviation.