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. Author manuscript; available in PMC: 2015 Feb 12.
Published in final edited form as: JAMA. 2014 Feb 12;311(6):604–614. doi: 10.1001/jama.2014.8

Table 2.

Percentages (95% confidence intervals) of patients rehospitalized within 30 days of discharge by sample characteristics for each rehabilitation impairment.

Stroke Brain dysfunction Neurologic conditions Fracture Joint replace Debility Total
Overall 12.7 (12.6, 12.8) 16.4 (16.3, 16.5) 17.4 (17.3, 17.5) 9.4 (9.4, 9.5) 5.8 (5.8, 5.9) 18.8 (18.8, 18.9) 11.8 (11.7, 11.8)
Year
 2006 12.7 (12.5, 12.9) 16.9 (16.7, 17.0) 17.5 (17.3, 17.7) 9.6 (9.5, 9.8) 5.8 (5.7, 5.9) 19.3 (19.1, 19.5) 10.9 (10.8, 11.1)
 2007 13.1 (12.9, 13.3) 16.7 (16.5, 16.9) 16.7 (16.5, 16.9) 9.3 (9.2, 9.5) 5.7 (5.6, 5.9) 18.8 (18.6, 19.1) 11.4 (11.2, 11.6)
 2008 12.8 (12.6, 13.0) 16.4 (16.2, 16.6) 17.3 (17.1, 17.5) 9.6 (9.4, 9.7) 5.9 (5.8, 6.0) 19.1 (18.9, 19.3) 11.9 (11.7, 12.1)
 2009 12.5 (12.3, 12.6) 16.9 (16.7, 17.1) 17.7 (17.5, 17.9) 9.6 (9.4, 9.8) 5.8 (5.6, 5.9) 18.7 (18.4, 18.9) 12.1 (11.9, 12.3)
 2010 12.6 (12.4, 12.8) 16.1 (15.9, 16.3) 17.5 (17.3, 17.7) 9.2 (9.0, 9.4) 6.2 (6.0, 6.3) 18.8 (18.6, 19.0) 12.3 (12.1, 12.5)
 2011 12.3 (12.1, 12.5) 15.8 (15.6, 16.0) 17.5 (17.3, 17.7) 9.1 (8.9, 9.3) 5.7 (5.6, 5.8) 18.5 (18.3, 18.7) 12.3 (12.1, 12.5)
Age
 < 75 yrs 12.0 (11.9, 12.1) 16.9 (16.8, 17.0) 16.8 (16.7, 16.9) 8.7 (8.6, 8.8) 5.1 (5.1, 5.2) 20.6 (20.4, 20.8) 11.0 (10.8, 11.1)
 75–84 yrs 12.8 (12.7, 12.9) 16.3 (16.2, 16.4) 17.5 (17.4, 17.7) 9.2 (9.1, 9.3) 6.2 (6.1, 6.3) 18.7 (18.6, 18.9) 11.9 (11.8, 12.0)
 85+ yrs 13.7 (13.5, 13.9) 15.9 (15.7, 16.0) 18.1 (17.9, 18.3) 10.3 (10.1, 10.4) 7.2 (7.1, 7.3) 17.3 (17.2, 17.5) 12.8 (12.7, 13.0)
Sex
 Male 12.2 (12.1, 12.4) 17.1 (17.0, 17.2) 17.5 (17.3, 17.6) 10.7 (10.6, 10.8) 6.2 (6.1, 6.3) 19.7 (19.5, 19.8) 13.0 (12.8, 13.1)
 Female 13.1 (13.0, 13.2) 15.8 (15.6, 15.9) 17.3 (17.2, 17.4) 9.0 (8.9, 9.1) 5.6 (5.6, 5.7) 18.2 (18.1, 18.3) 11.0 (11.0, 11.1)
Race/ethnicity
 White 12.3 (12.3, 12.4) 16.1 (16.0, 16.2) 17.2 (17.1, 17.3) 9.4 (9.3, 9.4) 5.9 (5.8, 5.9) 18.6 (18.5, 18.7) 11.5 (11.5, 11.6)
 Black 14.4 (14.1, 14.7) 19.1 (18.8, 19.5) 19.7 (19.4, 20.0) 10.2 (10.0, 10.4) 6.0 (5.8, 6.2) 20.4 (20.0, 20.7) 13.8 (13.5, 14.1)
 Hispanic 13.8 (13.5, 14.2) 17.3 (16.9, 17.7) 17.3 (16.9, 17.7) 10.2 (9.9, 10.5) 5.6 (5.4, 5.9) 20.0 (19.6, 20.5) 12.5 (12.1, 12.8)
 Other/unknown 12.4 (11.9, 12.8) 16.9 (16.4, 17.5) 17.3 (16.7, 17.8) 9.2 (8.8, 9.6) 4.9 (4.6, 5.2) 19.9 (19.4, 20.5) 11.9 (11.4, 12.4)
Marital status
 Not married 13.4 (13.2, 13.6) 16.4 (15.9, 16.8) 18.1 (17.7, 18.5) 9.8 (9.6, 10.0) 6.0 (5.9, 6.2) 18.4 (18.0, 18.7) 12.1 (12.0, 12.2)
 Married 12.0 (11.7, 12.2) 16.5 (16.1, 16.9) 16.8 (16.4, 17.1) 9.0 (8.8, 9.2) 5.6 (5.5, 5.8) 19.5 (19.1, 19.9) 11.4 (11.3, 11.5)
 Missing 13.8 (12.4, 15.2) 17.3 (14.7, 19.8) 15.3 (13.0, 17.7) 9.0 (7.8, 10.3) 5.6 (4.7, 6.6) 18.6 (16.3, 20.9) 11.9 (11.3, 12.6)
Prior living situation*
 With others 12.7 (12.6, 12.8) 16.9 (16.8, 17.0) 17.6 (17.5, 17.7) 9.6 (9.5, 9.7) 5.9 (5.8, 6.0) 19.7 (19.6, 19.8) 12.1 (12.0, 12.2)
 Alone 12.3 (12.2, 12.5) 15.2 (15.0, 15.3) 16.5 (16.4, 16.7) 8.8 (8.7, 8.9) 5.6 (5.5, 5.7) 17.2 (17.1, 17.4) 10.8 (10.7, 11.0)
 Unspecified 15.4 (14.9, 15.9) 16.4 (15.9, 16.9) 19.4 (18.9, 19.9) 12.6 (12.1, 13.0) 8.6 (8.2, 9.0) 18.7 (18.2, 19.2) 15.1 (14.7, 15.6)
Disability+
 No 12.4 (12.3, 12.5) 16.1 (16.1, 16.2) 17.1 (17.0, 17.1) 9.2 (9.1, 9.3) 5.6 (5.6, 5.7) 18.4 (18.3, 18.5) 11.4 (11.3, 11.5)
 Yes 15.1 (14.8, 15.3) 19.0 (18.7, 19.3) 19.2 (19.0, 19.5) 11.8 (11.6, 12.0) 7.9 (7.7, 8.1) 22.1 (21.8, 22.4) 14.8 (14.5, 15.0)
Dual eligibility
 No 12.0 (11.8, 12.2) 15.9 (15.6, 16.2) 16.6 (16.3, 16.9) 9.0 (8.8, 9.1) 5.6 (5.5, 5.7) 18.2 (17.9, 18.5) 11.1 (11.0, 11.2)
 Yes 15.8 (15.4, 16.2) 19.4 (18.6, 20.2) 21.0 (20.3, 21.8) 12.0 (11.6, 12.4) 7.4 (7.0, 7.8) 21.8 (21.1, 22.5) 15.1 (14.9, 15.3)
 Missing 3.2 (−3.0, 9.4) 18.4 (16.6, 20.3) 20.9 (19.0, 22.8) 11.3 (9.1, 13.5) 11.6 (9.9, 13.2) 19.7 (18.4, 20.9) 17.7 (16.9, 18.4)
Tier comorbidity
 No tier 11.7 (11.6, 11.7) 14.5 (14.4, 14.6) 14.8 (14.7, 14.9) 8.3 (8.3, 8.4) 5.2 (5.2, 5.3) 16.4 (16.3, 16.5) 9.9 (9.9, 10.0)
 Tier 3 15.7 (15.5, 15.8) 18.6 (18.4, 18.8) 20.0 (19.8, 20.2) 12.7 (12.5, 12.8) 7.7 (7.5, 7.8) 20.3 (20.1, 20.5) 15.1 (14.9, 15.3)
 Tier 2 21.1 (20.7, 21.5) 18.4 (18.1, 18.8) 20.5 (20.1, 20.9) 14.8 (14.5, 15.2) 11.2 (10.9, 11.5) 23.2 (22.8, 23.6) 18.9 (18.5, 19.3)
 Tier 1 25.9 (25.2, 26.6) 24.6 (23.9, 25.3) 28.8 (28.1, 29.6) 20.4 (19.7, 21.0) 15.2 (14.6, 15.8) 28.0 (27.3, 28.8) 25.6 (24.9, 26.3)
Length of stay
 <10 11.1 (10.9, 11.2) 15.1 (14.9, 15.2) 15.4 (15.3, 15.6) 7.1 (7.0, 7.2) 4.9 (4.8, 5.0) 16.6 (16.5, 16.8) 9.2 (9.1, 9.3)
 10–14 12.5 (12.3, 12.6) 16.4 (16.2, 16.5) 17.0 (16.8, 17.1) 8.7 (8.6, 8.8) 6.5 (6.4, 6.6) 18.8 (18.7, 19.0) 11.7 (11.6, 11.9)
 15+ 13.7 (13.6, 13.9) 17.6 (17.4, 17.7) 19.4 (19.3, 19.6) 11.4 (11.3, 11.6) 9.8 (9.6, 9.9) 21.9 (21.7, 22.1) 14.7 (14.5, 14.8)
Cognitive function: adm
 <23 14.2 (14.0, 14.3) 17.0 (16.9, 17.2) 18.2 (18.0, 18.3) 11.9 (11.7, 12.0) 8.0 (7.9, 8.1) 19.7 (19.5, 19.8) 14.8 (14.6, 14.9)
 23–28 11.6 (11.4, 11.7) 15.4 (15.3, 15.6) 17.7 (17.6, 17.9) 9.4 (9.3, 9.6) 6.5 (6.4, 6.6) 18.9 (18.7, 19.1) 12.0 (11.8, 12.1)
 29+ 10.3 (10.2, 10.5) 15.9 (15.8, 16.1) 15.8 (15.7, 16.0) 7.7 (7.6, 7.8) 5.1 (5.0, 5.2) 18.0 (17.8, 18.1) 8.9 (8.7, 9.0)
Motor function: admit
 <36 15.1 (15.0, 15.2) 18.4 (18.3, 18.6) 19.0 (18.8, 19.1) 11.4 (11.3, 11.5) 8.0 (7.9, 8.1) 21.0 (20.9, 21.2) 14.5 (14.4, 14.7)
 36–45 12.3 (12.2, 12.4) 16.6 (16.4, 16.7) 17.3 (17.2, 17.5) 8.7 (8.6, 8.8) 6.1 (6.0, 6.2) 19.1 (18.9, 19.2) 11.3 (11.2, 11.5)
 46+ 10.5 (10.4, 10.6) 14.2 (14.0, 14.3) 15.3 (15.2, 15.5) 6.7 (6.6, 6.8) 4.8 (4.7, 4.9) 16.7 (16.6, 16.9) 9.6 (9.4, 9.7)
Cognitive function: DC
 <29 14.4 (14.3, 14.5) 17.2 (17.1, 17.4) 18.9 (18.8, 19.1) 12.1 (12.0, 12.3) 8.8 (8.7, 8.9) 20.3 (20.1, 20.4) 15.2 (15.0, 15.3)
 29–32 10.6 (10.5, 10.8) 15.1 (15.0, 15.3) 17.1 (16.9, 17.2) 9.0 (8.9, 9.1) 6.3 (6.2, 6.4) 18.4 (18.2, 18.5) 11.1 (11.0, 11.3)
 33+ 9.5 (9.4, 9.7) 14.4 (14.3, 14.6) 14.8 (14.7, 15.0) 6.9 (6.8, 7.0) 4.9 (4.8, 4.9) 17.2 (17.0, 17.4) 8.1 (8.0, 8.2)
Motor function: DC
 <63 16.1 (16.0, 16.3) 20.7 (20.5, 20.8) 20.7 (20.6, 20.9) 12.8 (12.6, 12.9) 9.8 (9.7, 9.9) 23.1 (22.9, 23.3) 16.5 (16.4, 16.7)
 63–72 11.2 (11.0, 11.3) 14.5 (14.4, 14.7) 16.6 (16.5, 16.8) 8.2 (8.1, 8.3) 6.3 (6.2, 6.4) 18.0 (17.8, 18.1) 10.8 (10.7, 10.9)
 73+ 9.1 (9.0, 9.2) 12.2 (12.1, 12.4) 13.2 (13.1, 13.3) 6.0 (5.9, 6.1) 4.4 (4.4, 4.5) 14.6 (14.5, 14.8) 7.9 (7.8, 8.0)
Cognitive function: gain
 <2 13.6 (13.5, 13.8) 18.3 (18.2, 18.5) 17.8 (17.7, 18.0) 9.5 (9.4, 9.6) 5.6 (5.5, 5.7) 19.3 (19.1, 19.4) 11.4 (11.3, 11.5)
 2–5 12.5 (12.3, 12.6) 16.5 (16.4, 16.7) 17.5 (17.3, 17.6) 9.2 (9.1, 9.3) 5.9 (5.8, 6.0) 19.0 (18.8, 19.1) 11.8 (11.7, 11.9)
 6+ 12.2 (12.1, 12.4) 15.2 (15.0, 15.3) 16.8 (16.6, 16.9) 9.6 (9.5, 9.8) 6.3 (6.2, 6.4) 18.1 (18.0, 18.3) 12.2 (12.1, 12.3)
Motor function: gain
 <21 14.9 (14.7, 15.0) 19.1 (18.9, 19.3) 19.8 (19.7, 20.0) 11.8 (11.7, 11.9) 6.8 (6.7, 6.9) 21.3 (21.2, 21.5) 14.7 (14.5, 14.8)
 21–29 11.8 (11.7, 11.9) 15.5 (15.4, 15.6) 16.8 (16.7, 17.0) 9.0 (8.9, 9.1) 5.5 (5.4, 5.6) 18.1 (17.9, 18.2) 10.9 (10.8, 11.1)
 30+ 10.6 (10.5, 10.7) 13.9 (13.8, 14.0) 15.2 (15.1, 15.4) 8.1 (8.0, 8.2) 5.5 (5.4, 5.6) 16.5 (16.4, 16.7) 9.8 (9.7, 9.9)
Facility type
 Unit 12.7 (12.5, 12.9) 16.8 (16.4, 17.1) 17.2 (16.8, 17.5) 9.4 (9.2, 9.6) 6.0 (5.9, 6.1) 19.1 (18.7, 19.4) 11.7 (11.6, 11.8)
 Freestanding 12.7 (12.3, 13.0) 15.8 (15.3, 16.3) 17.7 (17.2, 18.1) 9.4 (9.2, 9.7) 5.5 (5.4, 5.7) 18.5 (18.1, 18.9) 11.8 (11.7, 11.9)
 Missing 13.7 (11.8, 15.6) 15.6 (12.4, 18.9) 14.3 (10.9, 17.8) 9.6 (8.2, 11.1) 8.2 (6.8, 9.6) 19.9 (16.8, 22.9) 12.2 (11.3, 13.0)
Ownership
 Non-profit 12.6 (12.5, 12.7) 16.7 (16.6, 16.8) 17.1 (17.0, 17.2) 9.3 (9.2, 9.4) 5.8 (5.8, 5.9) 19.1 (18.9, 19.2) 11.6 (11.5, 11.7)
 For profit 12.9 (12.8, 13.1) 16.1 (15.9, 16.2) 17.8 (17.6, 17.9) 9.6 (9.5, 9.7) 5.8 (5.7, 5.9) 18.5 (18.4, 18.7) 12.0 (11.9, 12.1)
 Government 12.5 (12.1, 12.8) 15.3 (15.0, 15.7) 16.4 (16.0, 16.7) 9.3 (9.0, 9.6) 5.7 (5.5, 6.0) 19.4 (18.9, 19.8) 11.3 (10.9, 11.6)
 Missing 14.2 (13.3, 15.0) 15.3 (14.5, 16.2) 14.3 (13.5, 15.1) 9.4 (8.7, 10.1) 8.1 (7.4, 8.7) 18.9 (18.0, 19.9) 12.2 (11.4, 12.9)
Facility location
 Urban 12.7 (12.5, 12.8) 16.5 (16.2, 16.8) 17.5 (17.2, 17.8) 9.4 (9.3, 9.6) 5.8 (5.7, 5.9) 18.9 (18.7, 19.2) 11.8 (11.8, 11.9)
 Rural 12.8 (12.3, 13.3) 16.0 (14.8, 17.2) 16.5 (15.5, 17.4) 9.5 (9.1, 9.9) 6.1 (5.7, 6.4) 17.8 (17.0, 18.6) 11.1 (10.9, 11.3)
 Missing 13.7 (11.8, 15.6) 15.6 (12.4, 18.9) 14.3 (10.9, 17.8) 9.6 (8.2, 11.1) 8.2 (6.8, 9.6) 19.9 (16.8, 22.9) 12.2 (11.3, 13.0)
*

Prior living setting categories are defined and recorded in the Inpatient Rehabilitation Facility-Patient Assessment Instrument (IRF-PAI).14

+

Disability based on persons meeting Social Security Disability criteria and receiving benefits for two years.

Dual eligibility refers to Medicare beneficiaries who qualify for both Medicare and Medicaid.

Tier comorbidity = Medicare tier level comorbidities developed for post-acute inpatient medical rehabilitation and recorded in the IRF-PAI.14

Cognitive and motor function are based on items from the Inpatient Rehabilitation Facility-Patient Assessment Instrument (IRF-PAI). The range of scores for motor items is 13–91; the range of scores for cognitive items is 5–35. Higher scores indicate better performance. 17 Admission includes rating within 36 hours of admission. Discharge includes ratings within 36 hours of discharge. Gain is the difference between admission and discharge ratings.14, 17

Facility type: Unit is located in acute care hospital; Freestanding refers to facilities that are independent versus hospital-based. This information is defined and recorded in the Inpatient Rehabilitation Facility-Patient Assessment Instrument (IRF-PAI).14

Facility location: Urban vs. Rural is defined and recorded in the Inpatient Rehabilitation Facility-Patient Assessment Instrument (IRF-PAI) file.