Table 5

Bivariate and multivariate linear regression analysis for TEOAE outcome
Bivariate model Multivariate model Final multivariate model
Characteristic Beta p Beta p Characteristic Beta p
Age −0.130 0.256 0.213 0.786
Male −0.247 0.027 −0.091 0.605
Solvent exp. EXP −0.317 0.004 −0.290 0.723 EXP −0.421 0.005
NEXP Reference
Tenure −0.346 0.002 −0.535 0.183
Risk factors Cigarettes −0.259 0.075 −0.033 0.849
Alcohol −0.206 0.166 −0.342 0.058 Alcohol −0.352 0.019
ShootWP 0.028 0.835 0.119 0.437
ShootNP 0.053 0.695 0.192 0.254
No Shoot Reference
Pastnoise −0.176 0.121 −0.051 0.750
Interactions Interactions
Age*solvent 0.180 0.895

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).

Fuente et al.

Fuente et al. BMC Public Health 2013 13:39   doi:10.1186/1471-2458-13-39

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