TABLE 3.

Bivariate Analysis Showing the RR of Being >1 SD Below Normal on Mullen Early Learning Composite Score for Injured Children

Characteristic	>1 SD Below		Reference Range		RR	95% CI
	N	%	N	%
Physiologic
Gender
Male	20	69.0	7	36.8	1.7	(1.0–3.0)
Female	9	31.0	12	63.2
Mechanism
Inflicted	17	58.6	8	42.1	1.3	(0.8–2.1)
Noninflicted	12	41.4	11	57.9
Seizure
Yes	17	58.6	5	16.3	2.4	(1.0–5.5)
No	12	41.4	14	73.7
Cardiopulmonary resuscitation
Yes	7	24.2	2	10.5	2.0	(0.5–7.9)
No	22	75.9	17	89.5
GCS
3–12	19	65.5	2	10.5	6.6	(1.7–25.5)
13–15	10	34.5	17	89.5
Social
Social capital index
<4	14	48.3	3	15.8	2.9	(1.0–8.6)
≥4	15	51.7	16	84.2
Below the poverty level
Yes	12	42.9	2	10.5	1.8	(1.2–2.7)
No	16	57.1	17	89.5
Twice below the poverty level
Yes	25	89.3	9	47.4	3.2	(1.2–8.7)
No	3	10.7	10	52.6
Maternal education
Less than high school	7	24.1	4	21.1	1.04	(0.8–1.4)
High school or greater	22	75.9	15	78.9
Hollingshead Index (categorized)
More than mean	18	69.2	8	44.4	1.8	(0.9–3.7)
Less than mean	8	30.8	10	55.6