Table II.

Multivariable logistic regression model for learning disability

Variable	Odds ratio (95% CI)
Atopic dermatitis in last 12 mon	1.48 (1.28–1.72)
Sex
Male	Reference
Female	0.59 (0.53–0.66)
Age, y	1.08 (1.07–1.10)
Birth weight
Normal (2500–3999 g)	Reference
Very low (< 1500 g)	2.80 (2.09–3.75)
Low (1500–2499 g)	1.35 (1.12–1.62)
High (≥ 4000 g)	0.85 (0.72–1.01)
Ethnicity
Non-Hispanic	Reference
Hispanic	0.68 (0.59–0.79)
Race
White	Reference
Black / African American	0.80 (0.68–0.94)
American Indian / Alaskan Native	0.59 (0.38–0.91)
Asian	0.30 (0.21–0.43)
Multiracial	0.95 (0.76–1.19)
Region
Northeast	Reference
Midwest	0.72 (0.59–0.87)
South	0.81 (0.67–0.96)
West	0.74 (0.61–0.89)
Annual household income, USD
$0–34,999	Reference
$35,000–74,999	0.80 (0.69–0.92)
$75,000–99,999	0.75 (0.60–0.92)
≥ $100,000	0.67 (0.55–0.80)
Not reported / unknown	0.74 (0.57–0.96)
Highest maternal education
Less than high school	Reference
High school graduate / GED	0.87 (0.72–1.05)
Some college, no degree	0.97 (0.79–1.19)
Associate degree	0.79 (0.63–0.99)
Bachelor degree	0.67 (0.53–0.85)
Master, professional, or doctoral degree	0.72 (0.54–0.94)
Not reported / unknown	0.84 (0.66–1.06)
Highest paternal education
Less than high school	Reference
High school graduate / GED	0.94 (0.75–1.18)
Some college, no degree	0.87 (0.67–1.12)
Associate degree	1.06 (0.82–1.37)
Bachelor degree	0.71 (0.55–0.94)
Master, professional, or doctoral degree	0.73 (0.53–1.01)
Not reported / unknown	1.11 (0.90–1.35)
General health status
Excellent	Reference
Very good	1.43 (1.26–1.63)
Good	2.44 (2.14–2.78)
Fair	5.20 (3.92–6.90)
Poor	10.22 (5.29–19.76)
Has health insurance coverage	1.27 (1.002–1.60)
Asthma	1.20 (1.06–1.37)
Hay fever or respiratory allergy in last 12 mon	1.25 (1.11–1.42)
Food allergy in last 12 mon	1.09 (0.89–1.34)

Data Source: NCHS, National Health Interview Survey, 2013–2017.