Table 1.

Patient Characteristics by Intervention Group Status at Baseline

	Total	Intervention Group	Control Group	P-Value
Patient characteristics, N (%)	N=9,795*	N=4487	N=5308
Patient-physician connectedness				0.87
Physician-Connected	5,763	2,644 (58.9)	3,119 (58.8)
Practice-Connected	4,032	1,843 (41.1)	2,189 (41.2)
Timing of overdue status				0.32
At study start (prevalent)	6,697	3,045 (67.9)	3,652 (68.8)
During first year (incident)	3,098	1,442 (32.1)	1,656 (31.2)
Age, mean (SD)	54.1 (7.8)	53.8 (7.7)	54.3 (7.9)	0.003
Ethnicity				<0.001
Non-Hispanic white	7,359	3,546 (79.0)	3,813 (71.8)
Hispanic	840	190 (4.2)	650 (12.3)
African American	701	301 (6.7)	400 (7.5)
Asian	466	249 (5.6)	217 (4.1)
Other/unknown	429	201 (4.5)	228 (4.3)
Primary language, English	8,803	4,173 (93.0)	4,630 (87.2)	<0.001
Insurance status				<0.001
Commercial health insurance	6,344	3,163 (70.5)	3181 (59.9)
Medicare	1,261	531 (11.8)	730 (13.8)
Medicaid	1,178	454 (10.1)	724 (13.6)
No insurance, self-pay	1,012	339 (7.6)	673 (12.7)
Months since last practice visit, median (IQR)	9.8 (5.6-18.4)	10.0 (5.7-18.7)	9.5 (5.5-18.2)	0.05

^*33 patients who died prior to the study start date were excluded.