Table 2. Standardized Probabilities of Pregnancy Testing.

Variable		All Visits (20.9% Tested)	Potential Reproductive Health Visits (44.5% Tested)	Visits with Exposure to Potentially Teratogenic Radiation (36.7% Tested)
Age category	Age 18-21	0.22 (0.21, 0.24)	0.46 (0.41, 0.51)	0.38 (0.33, 0.43)
	Age 14-17	0.19 (0.17, 0.20)	0.44 (0.40, 0.47)	0.36 (0.30, 0.42)
Race/Ethnicity	White	0.20 (0.18, 0.22)	0.44 (0.40, 0.49)	0.38 (0.32, 0.43)
	Black/ African American	0.22 (0.20, 0.24)	0.47 (0.43, 0.52)	0.34 (0.26, 0.43)
	Hispanic	0.23 (0.20, 0.25)	0.40 (0.34, 0.46)	0.37 (0.27, 0.48)
Insurance status	Private	0.20 (0.18, 0.22)	0.44 (0.40, 0.49)	0.36 (0.30, 0.42)
	Non-private	0.21 (0.20, 0.23)	0.45 (0.41, 0.48)	0.38 (0.33, 0.43)
ED disposition	Admit	0.23 (0.18, 0.27)	0.23 (0.15, 0.31)	0.24 (0.13, 0.35)
	Discharge	0.21 (0.19, 0.22)	0.46 (0.42, 0.49)	0.38 (0.33, 0.42)
Geographic Region	Northeast	0.15 (0.12, 0.18)	0.36 (0.29, 0.43)	0.35 (0.25, 0.45)
	Midwest	0.25 (0.21, 0.28)	0.50 (0.44, 0.56)	0.44 (0.37, 0.52)
	South	0.22 (0.19, 0.25)	0.45 (0.40, 0.51)	0.36 (0.29, 0.42)
	West	0.19 (0.16, 0.22)	0.44 (0.37, 0.51)	0.33 (0.22, 0.44)
ED type	General ED	0.21 (0.19, 0.23)	0.45 (0.42, 0.48)	0.38 (0.33, 0.42)
	Pediatric ED	0.15 (0.09, 0.21)	0.26 (0.09, 0.42)	0.19 (0.02, 0.39)

Model Goodness of Fit: F-test=0.379, p=0.945