Skip to main content

Table 1 Study patient characteristics

From: Roles of disease severity and post-discharge outpatient visits as predictors of hospital readmissions

 

Readmission No (N = 49,521)

Readmission Yes (N = 6011)

Demographics

 Mean Age --- year, (SD)***

44.5 (16.6)

49.3 (15.1)

 Median Age --- year, (IQR)***

44 (30–57)

51 (38–60)

 Male sex --- n, (%)***

19,367 (39)

3017 (50)

 Marital status --- n, (%)***c

  

  Single --- n, (%)

23,435 (47)

3028 (50)

  Married --- n, (%)

16,138 (33)

1560 (26)

  Divorced --- n, (%)

4191 (8)

659 (11)

 Race and ethnic groupc

  

  Black --- n, (%)***

11,826 (24)

1907 (32)

  White --- n, (%)

20,970 (42)

2489 (41)

  Hispanic --- n, (%)***

18,444 (37)

1626 (27)

Clinical Variables

 Mean LOS -- days, (SD)***

5 (8)

7 (8)

 Mean SOI --- n, (SD)***

2.1 (0.9)

2.6 (0.9)

 Median SOI --- n, (IQR)***

2 (1–3)

3 (2–3)

 Mean ROM --- n, (SD) ***

1.6 (0.9)

2.1 (0.9)

 Median ROM --- n, (IQR)***

1 (1–2)

2 (1–3)

 Disposition --- n, (%)***c

  

  Home

41,998 (85)

4887 (81)

  Other facilityb

3582 (7)

545 (9)

 Insurance Payers --- n, (%)***c

  No insurance

9320 (19)

859 (14)

  Medicare

7830 (16)

1251 (21)

Acute substance abuse

1999 (4)

257 (4)

History of psychiatric disorder(s)**

4296 (9)

593 (10)

Homeless***

1877 (4)

343 (6)

Primary care physician assignment --- n, (%)***

23,517 (47)

3593 (60)

Mean number of index discharge diagnoses --- n, (%)***

6 (6)

9 (7)

Median number of index discharge diagnoses --- n, (IQR)***

4 (1–9)

8 (4–13)

Mean number of medications prescribed upon index discharge --- n, (%)***

4 (4)

3 (4)

Median number of medications prescribed upon index discharge --- n, (IQR)***

3 (2–5)

2 (1–5)

Prescription Ratio --- (SD)***a

1.4 (1.5)

0.5 (0.9)

Prescription Ratio --- (median, IQR)***a

0.8 (0.3–2)

0.3 (0.1–0.7)

Prescription Ratio ≥ 0.5 --- (n, %)***a

32,325 (74)

2098 (45)

At least one ED/UCC/Clinic visit within 30 days after index discharge --- n, (%)***d

23,265 (47)

5699 (95)

At least one ED/UCC visit within 30 days from index discharge --- n, (%)***d

7232 (15)

5601 (93)

Days between first ED/UCC visit and index discharge (Mean, SD)***d

11.4 (8.7)

10.8 (7.8)

Days between first ED/UCC visit and index discharge (Median, IQR)d

9 (4–18)

9 (4–16)

At least one clinic visit within 30 days from index discharge --- n, (%)***d

20,218 (41)

2004 (33)

Days between first clinic visit and index discharge (Mean, SD)***d

10.9 (7.2)

7.3 (5.3)

Days between first clinic visit and index discharge (Median, IQR)***d

10 (5–15)

6 (3–11)

  1. Abbreviations: SD standard deviation; LOS length of stay; SOI refers to All Patient Refined Diagnosis Related Groups Severity of Illness; ROM refers to All Patient Refined Diagnosis Related Groups Risk of Mortality; IQR interquartile range
  2. **p < 0.01, ***p < 0.001
  3. aPrescription Ratio refers to the number of medications prescribed upon index discharge divided by the number of index discharge diagnoses
  4. bOther facilities includes: discharge to long term care, nursing, skilled nursing, short term hospital, and rehabilitation facilities
  5. cOther groups divided under these categories were not shown in this table
  6. dED/UCC/Clinic only counts within 30 days after the index discharge (no readmission group) or prior to readmission (readmission group)
Back to article page

BMC Health Services Research

ISSN: 1472-6963

Contact us