Table 3.

Summary of Retention-in-care Measures, by Level of Data Integration

	Clinic data	Clinic data with surveillance end-points	Clinic data with full surveillance data
Average observation time, years	5.3 (SD: 2.0)	4.9 (SD: 2.2)	4.9 (SD: 2.2)
Has at least 1 full year of observation time	2192 (99.9%)	2121 (96.7%)	2121 (96.7%)
Average HRSA compliance	70.3% (SD: 35.0%)	76.3% (SD: 32.3%)	77.6% (SD: 31.7%)
100% HRSA compliance over observation period	1022 (46.6%)	1147 (54.1%)	1182 (55.7%)
Had a gap of >12 months	986 (45.0%)	770 (36.3%)	730 (34.4%)

HRSA, Health Resources and Services Administration.