Table 5

Relation between acute blood styrene and serum prolactin concentrations; effects of gender, study session (S1 and S2), and age

Linear regression model (exposure variable, outcome variable)MenWomen
Bp valuenBp valuen
*The log base 10 transformations of PRL and styrene were used. Models also included age and number of cigarettes smoked per day.
†The log base 10 transformations of PRL and styrene were used. Models also included number of cigarettes smoked per day.
‡Models also included S1 PRL, difference in number of cigarettes smoked per day, elapsed years, and difference in time of day blood was drawn between session 1 and 2 samples.
§Models also included difference in number of cigarettes smoked per day, elapsed years, and difference in time of day blood was drawn between session 1 and 2 samples.
S1 acute blood styrene, S1 PRL*0.3000.0191720.2260.82233
S2 acute blood styrene, S2 PRL*0.3770.0441450.7260.45923
S1 acute blood styrene, S1 PRL†0.3570.0041720.0580.95333
S2 acute blood styrene, S2 PRL†0.4730.0111450.6490.45823
S2 minus S1 blood styrene, S2 PRL‡0.690.43410616.980.04320
S2 minus S1 blood styrene, S2 minus S1 PRL§1.050.27210622.690.02220