Table 3.

Results of multilevel models examining race and ethnicity and ORs of obesity

	Model 1	Model 2	Model 3	Model 4
	Race only	Individual characteristics	Model 2+tract deprivation	Model 3+interaction
	OR (95% CI)	OR (95% CI)	OR (95% CI)	OR (95% CI)
Race or ethnicity
Non-Hispanic white	Reference	Reference	Reference	Reference
Non-Hispanic black	1.5 (1.3 to 1.7)	1.3 (1.1 to 1.5)	1.1 (0.9 to 1.3)	1.1 (0.9 to 1.3)
Mexican-American	1.6 (1.4 to 1.9)	1.4 (1.2 to 1.6)	1.3 (1.1 to 1.5)	1.3 (1.1 to 1.5)
Change in black–white β from model 1 (%)		−36.5	−68.9	−73.9
Change in MA-white β from model 1 (%)		−28.1	−43.0	−49.0
PIR		1.0 (0.9 to 1.0)	1.0 (0.9 to 1.0)	1.0 (1.0 to 1.0)
Area deprivation			1.2 (1.1 to 1.3)	1.2 (1.1 to 1.3)
Interaction				1.1 (1.1 to 1.1)
ICC	0.09	0.09	0.09	0.08
PCV (%)	10.2	16.1	15.4	20.5
−2LL	13 940.2	13699.8	13676.4	13651.6
BIC	13989.0	13846.0	13832.3	13817.3

Estimates are ORs (95% CI).

Model 1 adjusts for age, age-squared, survey cycle and sex. Models 2–3 add caregiver education, caregiver marital status, and PIR. Model 3 adds the tract deprivation index. Model 4 adds the PIR by deprivation index interaction. Percentage of change in the race/ethnicity coefficients (β) are calculated on the logit scale using model 1 coefficients as the reference.

−2LL, −2 log likelihood; BIC, Bayesian Information Criterion; ICC, intraclass correlation coefficient; PCV, percent change in variance; PIR, poverty-to-income ratio.