Skip to main content

Table 4 Affecting factors on AAS use for national level competitive bodybuilders

From: Androgenic-anabolic steroids use among bodybuilders in western Iran: application of ridge logistic regression model

Variable

\(\widehat{{\mathbf{\beta }}}\)

SE (\(\widehat{{\mathbf{\beta }}}\))

Odds ratio

95% CI

p-value

Intrapersonal factors

Age

− 0.204

0.045

0.815

(0.746,0.891)

< 0.001

Time of starting the bodybuilding

0.018

0.003

1.012

(1.012, 1.025)

< 0.001

Body mass index

0.138

0.061

1.148

(1.019,1.293)

0.023

Attitude

− 0.014

0.066

0.986

(0.865,1.123)

0.829

Subjective norms

0.139

0.115

1.149

(0.917,1.439)

0.227

Physical self-concept

− 0.090

0.054

0.914

(0.822,1.015)

0.093

Behavioral intention

0.040

0.110

1.041

(0.839,1.291)

0.716

Behavioral willingness

0.010

0.080

1.010

(0.864,1.181)

0.899

Interpersonal factors

Coach use AAS

0.933

0.437

2.542

(1.080,5.983)

0.033

Friend use AAS

0.075

0.345

1.078

(0.548,2.120)

0.829

Behavioral factors

Alcohol consumption

0.436

0.390

1.547

(0.720,3.325)

0.264

Smoking

− 1.182

0.370

0.307

(0.148,0.634)

0.001

Supplement use

− 0.576

0.275

0.562

(0.328,0.964)

0.036