Table 3.

Race stratified unadjusted, individual-level adjusted, neighborhood-level adjusted, and fully adjusted odds ratios and 95% confidence intervals for preterm birth¹ (<37 weeks gestation) in selected counties² in Atlanta, GA (2013 – 2015)

	Observed Crime3		Estimated Crime4
	White	Black	White	Black
Unadjusted	0.97 (0.83, 1.12)	1.32 (1.13, 1.55)	0.72 (0.62, 0.85)	1.22 (1.06, 1.41)
Individual adjusted	0.75 (0.63, 0.88)	1.39 (1.18, 1.62)	0.72 (0.62, 0.85)	1.19 (1.03, 1.38)
Neighborhood adjusted	0.76 (0.62, 0.93)	1.46 (1.19, 1.79)	0.73 (0.62, 0.86)	1.25 (1.07, 1.46)
Fully adjusted	0.77 (0.63, 0.94)	1.43 (1.17, 1.75)	0.74 (0.63, 0.87)	1.23 (1.06, 1.44)
The unadjusted model does not control for any confounders
The individual adjusted model controls for age and maternal education
The neighborhood adjusted model controls for poverty, the proportion of the census tract that is black, and the neighborhood deprivation index
The fully adjusted model controls for age, maternal education, poverty, the proportion of the census tract that is black, and the neighborhood deprivation index

¹Birth data was used from vital birth records found on Georgia Department of Public Health website

²Fifteen counties in Georgia were included in this analysis: Clarke, Clayton, Cobb, Coweta, DeKalb, Douglas, Fayette, Fulton, Gwinnett, Henry, Newton, Oconee, Rockdale, Spalding, and Walton

³The observed crime rate used in models is the standardized value of the log-transformed crime ratio calculated by dividing the total count of crime by the total population for the census tract

⁴The estimated crime rate used in models is the standardized value of the log-transformed crime index values provided by the Environmental Systems Research Institute for each census tract