Table 3.

Multivariate logistic regression of birth characteristics for Asthma, NSCH (2011–2012)

Variable	Multivariate Logistic Regression
	Model 1a			Model 2b			Model 3c
	OR	95% CI		OR	95% CI		OR	95% CI
Preterm birth	1.64*	1.45	1.84	NA			NA
Low birth weight				1.43*	1.25	1.63	NA
Preterm birth and Low birth weight							1.77*	1.52	2.07
Gender of Child (Male)	1.29*	1.19	1.41	1.31*	1.20	1.43	1.30*	1.20	1.42
Race/Ethnicity of Child
Hispanic	Ref			Ref			Ref
Non-Hispanic white	0.94	0.81	1.08	0.95	0.82	1.10	0.94	0.82	1.09
Non-Hispanic black	1.61*	1.36	1.90	1.60*	1.36	1.89	1.59*	1.35	1.88
Non-Hispanic other	1.14	0.95	1.36	1.15	0.96	1.38	1.15	0.96	1.37
Child’s age at interview (years)
< =3	Ref			Ref			Ref
4~6	2.44*	2.06	2.89	2.44*	2.06	2.89	2.44*	2.06	2.89
7~12	3.12*	2.69	3.60	3.11*	2.68	3.60	3.12*	2.70	3.61
13~17	3.84*	3.30	4.46	3.80*	3.27	4.42	3.83*	3.29	4.46
Family Structure
Currently married	Ref			Ref			Ref
Cohabiting	1.17	0.98	1.39	1.17	0.98	1.39	1.17	0.98	1.39
Living apart	1.16*	1.02	1.32	1.16*	1.02	1.32	1.16*	1.02	1.31
Never married	1.40*	1.20	1.64	1.40*	1.20	1.64	1.40*	1.20	1.64
No parents in household	1.61*	1.27	2.04	1.59*	1.25	2.02	1.60*	1.26	2.02
Difficulty paying for bills
Never	Ref			Ref			Ref
Not very often	1.13*	1.02	1.26	1.14*	1.03	1.26	1.14*	1.02	1.26
Somewhat often	1.29*	1.14	1.46	1.30*	1.15	1.47	1.30*	1.15	1.47
Very often	1.61*	1.35	1.92	1.64*	1.38	1.95	1.62*	1.36	1.93
Parents’ Education
More than high school	Ref						Ref
High school graduate	0.97	0.88	1.07	0.97	0.88	1.06	0.97	0.88	1.07
Less than high school	0.94	0.82	1.08	0.93	0.82	1.07	0.94	0.82	1.07
Use of cigarettes, cigars, or pipe tobacco in the household	1.19*	1.08	1.31	1.20*	1.08	1.32	1.19*	1.08	1.31
Litter or garbage on the street or sidewalk	1.08	0.95	1.21	1.07	0.95	1.20	1.07	0.95	1.21

^a Predicting asthma with Preterm birth

^b Predict asthma with low birth weight

^c Predict asthma with both preterm birth and low birth weight

Ref, Reference

*p < 0.05