Table 2.

Comparison of mean test scores for adolescents with and without CFM

		Controls			Cases			Cases vs. Controls
								Unadjusted				Adjusted1
Test	Measure	N	Mean	SD	N	Mean	SD	Difference	95% CI		p-value	Difference	95% CI		p-value	ES2
WASI	Vocabulary	311	54.0	9.5	112	50.5	11.0	−3.5	−5.8	−1.2	0.003	−1.8	−3.9	0.3	0.10	−0.2
	Matrix Reasoning	311	49.9	8.5	114	48.7	10.0	−1.2	−3.3	0.8	0.24	−0.1	−2.2	2.0	0.92	−0.01
	Full Scale IQ	311	103.5	13.6	113	100.0	14.9	−3.4	−6.6	−0.3	0.03	−1.2	−4.2	1.8	0.44	−0.1
WRAT4	Spelling	310	107.7	13.9	113	104.8	16.2	−2.9	−6.2	0.5	0.09	−1.3	−4.9	2.2	0.46	−0.1
	Math Computation	308	108.9	15.3	113	104.7	16.1	−4.2	−7.6	−0.8	0.02	−2.3	−5.7	1.2	0.20	−0.2
Reading Composite		308	103.2	14.6	110	97.2	16.7	−6.0	−9.5	−2.5	0.001	−3.7	−7.0	−0.3	0.04	−0.3
WJTA-III	Writing Sample	298	104.4	12.1	107	99.4	14.2	−5.0	−8.1	−2.0	0.001	−3.6	−6.5	−0.7	0.01	−0.3

¹Standard scores used for all analyses; adjusted for age at assessment (continuous), gender, race/ethnicity (white non-Hispanic, Hispanic, other), income (categorical), primary caregiver’s highest level of education (categorical)

²ES = Standardized effect size