TABLE 3.

Association of Timely Follow-up and Facility-level Communication Modality

Communication Type	Patient Misses Scheduled Appointment for Additional Imaging
	Facilities Endorsing in Survey (%)	Follow-up in 1–15 d When Endorsed (%) vs Not Endorsed (%)	Impact on Timely Follow-up After Adjustment* (P Value)	OR (95% CI)
To patient
Phone	71.4	85.5 vs 72.8	.08	1.81 (0.93–3.53)
Mail	32.1	85.1 vs 80.3	.0429	1.65 (1.02–2.69)
Patient portal	3.6	81.8 vs 82.4	<.0001	2.05 (1.73–2.41)
In person	0.0	−	−	−
To provider
Phone	28.6	89.3 vs 77.3	.0012	2.61 (1.46–4.66)
Mail	17.9	76.9 vs 83.1	.63	1.30 (0.45–3.79)
Electronic medical record	21.4	78.0 vs 83.3	.95	0.98(0.49–1.93)
Fax	7.1	82.2 vs 82.5	.57	0.79 (0.35–1.79)

CI, confidence interval; OR, odds ratio; PROSPR, Population-based Research Optimizing Screening through Personalized Regimens.

^*The generalized estimating equation model controlled for age, race and ethnicity, PROSPR site, and the correlation of outcomes within a radiology facility. Results are presented for the patient and the provider among the 28 facilities for the scenario of patient misses a scheduled appointment for additional imaging.