Table 3.

Hierarchical regression model of analgesic misuse in a favorable situation.

Variable	R2	R2 Change	B	SE B	β	t
Step 1	0.02
Constant			2.13	0.99		2.16
Age			0.02	0.04	0.05	0.54
Gender			0.05	0.32	0.01	0.14
Competition participation			0.50	0.34	0.14	1.47
Step 2	0.09*	0.07**
Constant			1.03	1.02		1.01
Age			0.01	0.04	0.02	0.22
Gender			−0.19	0.32	−0.06	0.55
Competition participation			0.50	0.33	0.14	1.53
Doping attitudes			0.80	0.27	0.28**	3.01
Step 3	0.18**	0.09**
Constant			−0.57	1.07		−0.53
Age			>-0.01	0.03	−0.01	−0.10
Gender			0.04	0.31	0.01	0.12
Competition participation			0.50	0.31	0.13	1.44
Doping attitudes			0.70	0.27	0.24**	2.72
Worry			0.20	0.06	0.31**	3.60

^*p < 0.05,

^**p < 0.01. R², Proportion of variation in dependent variable; R² Change, Proportion of variation in dependent variable by independent variable; B, Unstandardized regression coefficient; SE B, Standard deviation of unstandardized regression coefficient; β, Standardized regression coefficient; t, T-statistic for regression coefficient.