Table 3b.

Adjusted sensitivity, false positive rate, and cancer detection rate for diagnostic mammography by vulnerability index of the facility at which the mammography was performed^*

	Evaluation of breast problem
	Sensitivity			False positive rate			CDR** (per 1,000 exams)
	Non-vulnerable (%)	Vulnerable (%)	OR (95% CI)***	Non-vulnerable (%)	Vulnerable (%)	OR (95% CI)***	Non-vulnerable	Vulnerable	OR (95% CI)***
Vulnerability Index
Education	81.9	79.8	0.87 (0.63, 1.20)	6.1	8.2	1.39 (1.08, 1.79)	36.5	39.6	1.09 (0.88, 1.35)
Race/ethnicity	81.5	81.1	0.97 (0.67, 1.42)	6.2	8.0	1.32 (0.98, 1.76)	35.9	44.3	1.25 (0.98, 1.60)
Rural/urban residence	80.4	83.5	1.24 (0.93, 1.66)	5.7	8.5	1.55 (1.27, 1.88)	34.6	42.9	1.26 (1.05, 1.50)
Income	81.6	80.9	0.95 (0.70, 1.29)	6.0	7.8	1.34 (1.08, 1.66)	35.6	41.0	1.16 (0.97, 1.40)
Composite Vulnerability Score			Sensitivity			False positive rate			CDR
0	Reference		81.2	Reference		5.4	Reference		33.5
1	1.10 (0.78, 1.55)		82.5	1.31 (1.06, 1.63)		6.9	1.15 (0.94, 1.41)		38.3
2	1.01 (0.69, 1.48)		81.3	1.39 (1.08, 1.78)		7.3	1.25 (0.99, 1.57)		41.2
3	0.89 (0.60, 1.32)		79.4	1.71 (1.27, 2.32)		8.8	1.28 (0.98, 1.67)		42.2
4	1.72 (0.70, 4.20)		87.9	2.12 (1.36, 3.32)		10.6	1.40 (0.91, 2.14)		45.9
	p for trend = 0.36			p for trend < 0.01			p for trend = 0.10

^*Adjusted for mammography-level registry, age (5-year bands), time since previous mammography, and BI-RADS breast density.

^**CDR = Cancer detection rate

^***Non-vulnerable is taken to be the reference group.

^†Composite vulnerability scores were calculated by adding 1 for each of the vulnerability indices met.