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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)
  1. Sign * indicates significant test in level 0.05