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Table 4 Bivariate and multivariate linear regression analysis for PTA (500 Hz-8000 Hz) outcome

From: Auditory dysfunction associated with solvent exposure

Bivariate model

 

Multivariate model

Final multivariate model

Characteristic

 

Beta

p

Beta

p

Characteristic

Beta

p

Age

 

0.411

p<0.0001

0.089

0.894

Age

0.365

p<0.0001

Male

 

0.056

0.594

−0.248

0.093

   

Solvent exp.

EXP

0.332

0.001

−0.122

0.855

EXP

0.296

0.002

 

NEXP

Reference

      

Tenure

 

0.415

p<0.0001

−0.068

0.834

   

Risk factors

Cigarettes

0.197

0.158

0.246

0.083

   
 

Alcohol

0.200

0.152

0.278

0.043

   
 

ShootWP

−0.060

0.635

0.040

0.754

   
 

ShootNP

−0.035

0.786

0.162

0.246

   
 

No Shoot

Reference

      
 

Pastnoise

0.174

0.095

0.117

0.377

   

Interactions

     

Interactions

  

Age*solvent

   

0.627

0.581

   
  1. Note. Solvent exp: EXP: solvent-exposed group, NEXP: non-exposed group (reference); Tenure: number of years working at the factory exposed to solvents; Cigarettes: Number of cigarettes smoked per week; Alcohol: Number of drinks per month; Shoot WP: history of shooting practice wearing hearing protection; ShootNP: history of shooting practice without wearing hearing protection; No shoot: absence of shooting practice (reference); Pastnoise: history of previous occupational noise exposure; Interaction Age*solvent: factor of age times solvent group (exposed versus non-exposed).
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BMC Public Health

ISSN: 1471-2458

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