Assessment of knowledge, perception, attitude, and use of performance-enhancing substances among students of Faculty of Medicine, Alexandria University, Egypt: a pilot study

Egyptian Journal of Forensic Sciences

Table 7 Logistic regression models for analysis of attitude towards performance-enhancing substances

	Predictor	B	S.E.	Wald	Sig.	-2 LL	Cox & Snell R²	Nagelkerke R²
Group 1 physical performance enhancement
Knowledge	Knowledge score	0.034	0.017	3.908	.048^*	144.506	0.020	0.040
Knowledge	Constant	-3.954	1.032	14.668	0.000	144.506	0.020	0.040
Perception	perception_score	0.012	0.011	1.268	0.260	147.484	0.006	0.012
Perception	Constant	-2.566	0.537	22.866	0.000	147.484	0.006	0.012
Sex	Sex	-.398	0.436	0.832	0.362	147.691	0.004	0.008
Sex	Constant	-1.829	0.299	37.494	0.000	147.691	0.004	0.008
Group 2 cognitive performance enhancement
Knowledge	Knowledge score	0.026	0.022	1.389	0.239	95.520	0.007	0.019
Knowledge	Constant	-4.149-	1.309	10.053	0.002	95.520	0.007	0.019
Perception	perception_score	0.021	0.015	2.114	0.146	94.813	0.011	0.028
Perception	Constant	-3.664-	0.773	22.440	0.000	94.813	0.011	0.028
Sex	Sex	0.665	0.618	1.157	0.282	95.635	0.006	0.016
Sex	Constant	-3.102-	0.511	36.842	0.000	95.635	0.006	0.016