. Author manuscript; available in PMC: 2021 Nov 12.

Published in final edited form as: J Acoust Soc Am. 2018 Mar;143(3):1704. doi: 10.1121/1.5028368

Table 1.

Characterization of the study population (n = 40). Mean values, range and standard deviation (within parenthesis) for the variables of age, tenure, current time-weighted noise and solvent exposures, and estimated cumulative noise exposures (CNE).

Variable	Noise (n = 20)	Noise and solvents (n = 20)
Age (years)	35.8 (27–49, SD 6.6)	36.7 (25-47, SD 6.7)
Gender	17 males, 3 females	17 males, 3 females
Tenure (years)	7.1 (3-16, SD 3.3)	5.9 (2–16, SD 4.2)
Exposures
L_Aeq (in dBA)	87 (81-93.8, SD 3.7)	86.6 (82-91.5, SD 3)
Kurtosis	30 (5.2-214, SD 44)	26.7 (7-102, SD 22)
CNE (dBA by year)	95 (88-103.8)	94.4 (88-103.6)
Solvent Mixture dose (%)	N.A.	6 to 93%
Acetone (ppm)	N.A.	TWA <0.1-2.4
Ethyl Acetate (ppm)	N.A.	TWA <0.07-1.85
Methyl Ethyl Ketone (MEK) (ppm)	N.A.	TWA <0.04-0.15
Benzene (ppm)	N.A.	TWA <0.03
Toluene (ppm)	N.A.	TWA 0.07-12.4
Butyl Acetate (ppm)	N.A.	TWA 0.94-6.9
Xylenes (ppm)	N.A.	TWA <0.06-9.8
Styrene (ppm)	N.A.	(<0.03-8.2)