Table 3.

Unadjusted and logistic regression adjusted associations of subject characteristics and intervention arms with mammography adherence at the end of Year 4

Characteristics	Odds ratio
	Unadjusted	Adjusted	95% CIa
Study arm
CC vs. LO	1.01	1.00	0.88–1.13
RC vs. LO	1.16	1.16	1.02–1.31
Age
40–49 vs. 50–74	0.61	0.75	0.66–0.85
75–84 vs. 50–74	0.34	0.34	0.28–0.42
Insurance
FH Medicaid vs. FH Commercial	0.58	0.67	0.44–1.01
FH Medicare vs. FH Commercial	0.63	0.90	0.75–1.08
Months in study
12–23 vs. 0–11	2.57	2.48	1.95–3.15,
24–35 vs. 0–11	2.75	2.71	2.14–3.43
36–48 vs. 0–11	3.54	3.67	3.00–4.50

CC counseling call arm; CI confidence interval; FH Fallon Health; LO letter only arm; RC reminder call arm.

aFor adjusted odds ratio.