Table 3.

Reproduction Task Score Regression Analyses Results

	Linear Model with Outliner (n=501)			Linear Model Outlier Removed (n=500)
	R2 = 0.08	p = 0.0015		R2 = 0.09	p = 0.0007
Parameter Estimate	Regression Coefficient	SE	p-value	Regression Coefficient	SE	p-value
Prenatal MeHg	−0.03	0.01	0.04	−0.03	0.01	0.07
Postnatal MeHg	0.01	0.02	0.46	0.009	0.02	0.66
Sex (Female)	0.08	0.07	0.23	0.09	0.06	0.19
Sex (Male)	−0.08	0.07	0.23	−0.09	0.06	0.19
Child’s medical history
Negative	−0.11	0.09	0.22	−0.08	0.09	0.35
Positive	0.11	0.09	0.22	0.08	0.09	0.35
Child’s age at testing	1.04	0.37	0.005	1.13	0.37	0.002
Maternal age	−0.01	0.01	0.38	−0.01	0.01	0.25
Family Resource Scale	0.0002	0.003	0.96	0.0007	0.003	0.83
HELPS	−0.0002	0.008	0.98	0.0005	0.008	0.95
Maternal IQ (K-Bit)	0.003	0.005	0.58	0.003	0.005	0.58
Hearing level
Normal (≤25)	0.33	0.15	0.03	0.33	0.15	0.03
Borderline or Abnormal (>25)	−0.33	0.15	0.03	−0.33	0.15	0.03
HOME [P for overall test]			0.07			0.06
Low	−0.03	0.10	0.75	−0.04	0.10	0.70
Medium	0.20	0.09	0.03	0.21	0.09	0.02
High	−0.17	0.10	0.08	−0.17	0.10	0.08
SES [P for overall test]			0.03			0.03
Unskilled	−0.28	0.12	0.02	−0.29	0.12	0.01
Semiskilled	0.10	0.11	0.36	0.11	0.11	0.33
Skilled	−0.11	0.13	0.38	−0.10	0.12	0.42
Professional	0.29	0.16	0.06	0.28	0.15	0.07
Family Status [P for overall test]			0.15			0.16
No Biological parents	−0.26	0.14	0.06	−0.25	0.14	0.07
One Biological parent	−0.19	0.14	0.17	−0.19	0.14	0.15
Two Biological parents	0.45	0.24	0.06	0.44	0.23	0.06
Tester [P for overall test]			0.02			0.01
Tester 1	0.26	0.09	0.005	0.27	0.09	0.004
Tester 2	−0.13	0.10	0.17	−0.13	0.10	0.19
Tester 3	−0.13	0.09	0.14	−0.15	0.09	0.10