Table 1 Demographical feature and status of activity in club of participants in terms of currently AAS use
From: Random forest model to identify factors associated with anabolic-androgenic steroid use
Quantitative features | Current AAS use (n = 35) | No current AAS use (n = 245) | P-value |
Mean (SD) | Mean (SD) | ||
Age | 24.51 (4.95) | 25.31 (6.53) | 0.491 |
Weight | 79.40 (14.51) | 78.30 (12.70) | 0.638 |
Body mass index (BMI) | 24.94 (4.70) | 24.74 (3.52) | 0.766 |
History of sport club (month) | 66.00 (65.56) | 44.37 (54.00) | 0.032* |
Qualitative features | N (%) | N (%) | P-value |
Marriage status | |||
 Single | 27 (77.1) | 196 (80.0) | 0.659 |
 Married | 8 (22.9) | 49 (20.0) | |
Level of education | |||
 Lower than diploma | 7 (20.0) | 26 (10.6) | 0.316 |
 Diploma | 16 (45.7) | 103 (42.0) | |
 Academic | 12 (34.3) | 116 (47.3) | |
Titleholder in bodybuilding | |||
 No | 14 (40) | 128 (52.2) | 0.370 |
 Regional | 16 (45.7) | 97 (39.6) | |
 National | 5 (14.3) | 20 (8.2) | |
Alcohol use | |||
 Always | 4 (2.4) | 6 (1.9) | 0.009* |
 Sometimes | 11 (31.4) | 54 (22.0) | |
 Never | 20 (57.1) | 185 (75.5) | |
Tobacco smoking | |||
 Always | 4 (11.4) | 10 (4.1) | 0.127 |
 Sometimes | 5 (14.3) | 26 (10.6) | |
 Never | 26 (74.3) | 209 (85.3) | |
Previous AAS use | |||
 Always | 7 (20.0) | 4 (1.6) | < 0.001* |
 Sometimes | 24 (68.6) | 41 (16.7) | |
 Never | 4 (11.4) | 200 (81.6) | |
AAS usage by the Coach | |||
 Always | 11 (31.4) | 39 (15.9) | 0.042* |
 Sometimes | 12 (34.3) | 76 (31) | |
 Never | 12 (34.3) | 130 (53.1) | |
AAS usage by the best friend | |||
 Always | 11 (31.4) | 37 (15.1) | < 0.001* |
 Sometimes | 19 (54.3) | 54 (22) | |
 Never | 5 (14.3) | 154 (62.9) | |
Nutritional supplement use | |||
 Always | 13 (37.1) | 36 (14.7) | 0.002* |
 Sometimes | 17 (48.6) | 128 (52.2) | |
 Never | 5 (14.3) | 81 (33.1) | |