Table 3.

Association between tree canopy cover and hypertensive disorder of pregnancy (HDP) among Non-Hispanic Black participants, n = 857 (* adjusted for prenatal BMI, parity, history of diabetes, age, insurance, seasonality of last menstrual period and deprivation index by census tract)

buffer size	Tree canopy cover	no HDP	HDP	OR (95% CI)	P-Value	Adjusted* OR (95% CI)	P-Value
100 m	>30%	49 (7.7%)	6 (2.7%)	1 (ref)	-	1 (ref)	-
	20–30%	142 (22.3%)	49 (22.4%)	2.82 (1.14–6.99)	0.025	3.23 (1.23–8.50)	0.017
	10–20%	314 (49.2%)	118 (53.9%)	3.07 (1.28–7.35)	0.012	3.13 (1.23–7.95)	0.016
	<10%	133 (20.8%)	46 (21.00%)	2.82 (1.14–7.03)	0.026	3.29 (1.24–8.70)	0.017