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Table 6 Bivariate and multivariate linear regression analysis for Random gap detection (average)

From: Auditory dysfunction associated with solvent exposure

Bivariate model Multivariate model Final multivariate model
Characteristic   Beta p Beta p Characteristic Beta p
Age   0.293 0.007 0.527 0.466 Age 0.255 0.008
Male   0.086 0.431 0.033 0.840    
Solvent exp. EXP 0.403 p<0.0001 0.177 0.813 EXP 0.239 0.027
  NEXP Reference      
Tenure   0.467 p<0.0001 0.082 0.821    
Risk factors Cigarettes −0.048 0.742 −0.255 0.098    
  Alcohol −0.104 0.477 −0.031 0.834    
  ShootWP −0.064 0.626 0.021 0.883    
  ShootNP 0.224 0.086 0.257 0.098    
  No Shoot Reference      
  Pastnoise 0.427 p<0.0001 0.384 0.012 Pastnoise 0.303 0.005
Interactions       Interactions   
Age*solvent     −0.250 0.840    
  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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