Table 2.

Linear regression of the natural log of Louisiana recreational anglers’ hair Hg concentration on three fish consumption and Hg dose metrics (each metric modeled separately).

Model/variable	β-Coefficient	95% confidence interval	p-Value	Adjusted model R2
Overall fish consumption				0.17
Frequency
≤ 1×/month	Referent	—	—
1×/week	0.32	−0.014–0.65	0.061
3×/week	0.38	0.037–0.71	0.030*
≥ 1×/day	1.1	0.37–1.8	0.003*
Age (years)	−0.0024	−0.0084–0.0036	0.438
BMI (kg/m2)	−0.0047	−0.021–0.011	0.562
Survey type
In person	Referent	—	—
Web	0.47	0.31–0.64	< 0.001*
Sex
Female	Referent	—	—
Male	0.26	0.0093–0.51	0.042*
Race/ethnicity
White/Caucasian	Referent	—	—
Nonwhite	−0.012	−0.39–0.37	0.948
Education level
≤ High school degree	Referent	—	—
Some college	0.074	−0.15–0.30	0.517
College degree	0.23	0.011–0.44	0.040*
Postgraduate	0.45	0.21–0.70	< 0.001*
Species-specific Hg dose				0.25
Daily dose (μg/kg/day)	1.8	1.3–2.4	< 0.001*
Age (years)	0.00039	−0.0054–0.0061	0.893
BMI (kg/m2)	0.0040	−0.011–0.019	0.608
Survey type
In person	Referent	—	—
Web	0.40	0.24–0.56	< 0.001*
Sex
Female	Referent	—	—
Male	0.36	0.12–0.60	0.003*
Race/ethnicity
White/Caucasian	Referent	—	—
Nonwhite	0.085	−0.28–0.45	0.645
Education level
≤ High school degree	Referent	—	—
Some college	0.099	−0.11–0.31	0.361
College degree	0.22	0.020–0.43	0.031*
Postgraduate	0.42	0.19–0.66	< 0.001*
Scaled Hg dose				0.21
Daily dose (μg/kg/day)	10	6.3–14	< 0.001*
Age (years)	−0.0016	−0.0075–0.0042	0.585
BMI (kg/m2)	0.0011	−0.014–0.017	0.887
Survey type
In person	Referent	—	—
Web	0.46	0.29–0.62	< 0.001*
Sex
Female	Referent	—	—
Male	0.32	0.078–0.56	0.010*
Race/ethnicity
White	Referent	—	—
Nonwhite	0.089	−0.28–0.46	0.635
Education level
≤ High school degree	Referent	—	—
Some college	0.084	−0.13–0.30	0.448
College degree	0.20	−0.13–0.40	0.066
Postgraduate	0.42	0.18–0.66	< 0.001*

^*p < 0.05.