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. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: J Occup Environ Med. 2016 Mar;58(3):248–253. doi: 10.1097/JOM.0000000000000672

Table 4.

Bivariate and multivariate analysis results comparing odor threshold performance of farmworkers and non-farmworkers. N=551. North Carolina, 2012.

Bivariate Analysis Multivariate Linear Regression

Variable Odor Threshold
Mean (SD)
p-valuea Odor Threshold
Least Square Means (SE)
p-value
Farmworker status <.0001 <.0001
 Farmworker 5.91 (2.88) 6.36 (0.25)
 Non-farmworker 7.35 (3.48) 7.80 (0.26)
Age 0.0049 0.0021
 <30 years 7.44 (3.30) 7.95 (0.32)
 30–34 years 6.50 (3.08) 7.10 (0.32)
 35–44 years 6.39 (3.37) 6.78 (0.29)
 45+ years 6.01 (3.01) 6.49 (0.34)
Sex 0.0007 0.0048
 Female 7.82 (3.76) 7.61 (0.37)
 Male 6.32 (3.08) 6.54 (0.17)
Current smoking status 0.5015 0.6108
 Smoker 6.38 (2.94) 7.16 (0.33)
 Non-smoker 6.61 (3.32) 7.00 (0.19)
a

t-test or one-way ANOVA