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Table 2 Mean, standard deviation, median, and range for the covariates for the total group and subgroups of subjects

From: Auditory dysfunction associated with solvent exposure

Variables All (n=144)   Group 1 (n=72)   Group 2 (n=72)
  Mean Median Range Mean Median Range Mean Median Range
Age (years) 38.7 (7.8) 38.0 22-55 39.9 (8.5) 43.0 22-52 37.5 (7.1) 36.0 26-55
Gender          
Female 20    6    14   
Male 124    66    58   
PNE 30    27    3   
Shooting          
WP 3    3    0   
NP 39    33    6   
Tenure - - - 15.8 (8.1) 16.5 2-34 0 0 0
Smoking 21.26 (30.7) 14.0 0-140 26.8 (32.1) 14.0 0-140 18.7 (15.8) 12 0-80
Alcohol 17.4 (17.8) 13.5 0-60 15.6 (16.3) 13.5 0-60 31.2 (24.4) 27 0-60
  1. Note. Group 1: Solvent-exposed workers Group 2: Non-exposed workers.
  2. () Standard deviation.
  3. Alcohol. Number of drinks per month.
  4. Smoking. Number of cigarettes per week.
  5. Tenure. Years working at the factory exposed to solvents.
  6. PNE. Number of subjects who have been exposed to noise in previous jobs.
  7. Shooting WP. Number of subjects who have shot wearing hearing protection.
  8. Shooting NP. Number of subjects who have shot without wearing hearing protection.