Table 4.

Cumulative Likelihood (Hazard Ratio [95% Confidence Interval]) of Hospital Readmission at 1, 2, 3, and 4 Weeks Post-hospitalization by Inpatient Service

A. Medical service
	Hazard ratio [95% CI]	p value
Follow-up week 1
Arrived at follow-up	0.57 [0.47–0.69]	< 0.001
Scheduled/missed follow-up	0.74 [0.55–0.98]	0.04
No follow-up	1 [Reference]
Follow-up week 2
Arrived at Follow-up	1.12 [0.97–1.31]	0.13
Scheduled/Missed Follow-up	1.20 [0.93–1.54]	0.15
No Follow-up	1 [Reference]
Follow-up week 3
Arrived at follow-up	1.29 [1.10–1.51]	0.001
Scheduled/missed follow-up	1.21 [0.93–1.57]	0.16
No follow-up	1 [Reference]
Follow-up week 4
Arrived at follow-up	1.46 [1.26–1.70]	< 0.001
Scheduled/missed follow-up	1.31 [1.02–1.68]	0.04
No follow-up	1 [Reference]

B. Surgical service
	Hazard ratio [95% CI]	p value
Follow-up week 1
Arrived at follow-up	0.58 [0.44–0.75]	< 0.001
Scheduled/missed follow-up	0.93 [0.60–1.44]	0.74
No follow-up	1 [Reference]
Follow-up week 2
Arrived at follow-up	0.97 [0.76–1.24]	0.80
Scheduled/missed follow-up	0.93 [0.54–1.60]	0.80
No follow-up	1 [Reference]
Follow-up week 3
Arrived at follow-up	1.24 [0.90–1.71]	0.19
Scheduled/missed follow-up	0.93 [0.46–1.90]	0.85
No follow-up	1 [Reference]
Follow-up week 4
Arrived at follow-up	1.23 [0.89–1.71]	0.21
Scheduled/missed follow-up	1.15 [0.58–2.28]	0.70
No follow-up	1 [Reference]