Table 2:

Age and multivariable-adjusted Quantile Regression β coefficient and 95% confidence intervals for diagnostic delay (diagnostic evaluation, biopsy, and total delay) according to patient demographic characteristics among 730 Black and White women who underwent breast cancer screening prior to a breast cancer diagnosis at an Emory University Breast Imaging Center (2010–2014).

	Diagnostic Evaluation Delay	Biopsy Delay	Total Delay
	(30≥ vs <30)	(15≥ vs <15)	(45≥ vs <45)
Demographic Characteristics	β (95% CI)	β (95% CI)	β (95% CI)
Race *
White	Reference	Reference	Reference
Black	10.10 (7.62, 12.60)	3.38 (2.10, 4.67)	16.30 (11.6,21.00)
Age Category
<55	Reference	Reference	Reference
55–65	0.00 (−6.09, 6.09)	−1.00 (−3.03, 1.03)	−4.00 (−14.4, 6.39)
66–75	3.00 (−2.96, 8.96)	0.00 (−1.99, 1.99)	2.00 (−8.17, 12.20)
>75	0.00 (−5.93, 5.93)	1.00 (−0.98, 2.98)	−1.00 (−11.1, 9.1)
Socioeconomic Status **
0% – <10% poverty	Reference	Reference	Reference
10% – <20% poverty	1.69 (−1.48, 4.87)	−0.39 (−1.84, 1.05)	2.89 (−3.27, 9.06)
20% – 100% poverty	1.64 (−1.74, 5.02)	1.63 (0.10, 3.17)	6.79 (0.22, 13.40)
Insurance Status ***
Private(BLUE CROSS, HMO PPO)	Reference	Reference	Reference
MEDICARE	−2.26 (−6.40, 1.88)	1.00 (−0.40, 2.4)	−3.31 (−9.82, 3.60)
Geographical Distance to Screening Facilities ****
Range 1 (0–5.8 miles)	Reference	Reference	Reference
Range 2 (5.8–10.8)	1.00 (−2.43, 4.43)	0.40 (−1.46, 2.26)	3.07 (−3.85, 10.00)
Range 3(10.8–18.95)	0.00 (−3.56, 3.56)	0.10 (−1.83, 2.03)	0.85 (−6.33, 8.04)
Range 4(18.95–2180.5)	−3.00 (−6.50, 0.50)	−0.85 (−2.76, 1.06)	−3.93 (−11.0, 3.16)
Marital Status ****
Married (common law and unmarried domestic)	Reference	Reference	Reference
Other (single, divorced, widowed, separated)	0.30 (−2.36, 2.96)	0.50 (−0.87, 1.87)	1.36(−4.09, 6.81)

Adjustments

^*age

^**age, race

^***age, SES

^****age, SES, race