Table 4 Measures of association and variation in sidewalk obstruction (a lot versus some/none) based on multilevel logistic regression*.

	Empty model	Model with age of housing stock and block group location	Model with poverty rate	Model with racial distribution	Model with poverty rate and racial distribution
Measures of association
Odds ratio
Poverty rate 10–19% vs <10%			1.38 (0.33–6.00)		0.85 (0.15–3.96)
Poverty rate 20+% vs <10%			1.46 (0.25–8.07)		0.55 (0.06–3.23)
>50% AA vs >50% white				15.05 (4.18–77.32)	13.69 (4.15–51.58)
Interval odds ratio
Poverty rate 10–19% vs <10%			0.03–67.50		0.03–25.76
Poverty rate 20+% vs <10%			0.03 to 74.45		0.02–16.55
>50% AA vs >50% white				0.42–543.54	0.45–413.86
Measures of variation or clustering
Block group variance	4.3278	4.0050	4.6197	3.9263	3.5465
PCV %	N/A	N/A	6.7	−2.0	−11.5
Median odds ratio (95% CrI)	7.22 (3.76–13.83)	6.69 (3.49–13.30)	7.71 (3.99–16.36)	6.57 (3.43–15.35)	5.98 (3.38–10.16)
ICC %	56.8	54.9	58.4	54.4	51.9
DIC	416.78	416.40	403.44	392.85	394.65

AA, African–American; CrI, credible interval; DIC, deviance information criterion; ICC, intraclass correlation; PCV, proportional change in variance relative to model with age of housing stock and block group location.

*All models except the empty model contain the variables of age of housing stock and block group location in St Louis City or County.