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Table 2 Risk factors for unplanned ED readmission in discharged patients based on univariate analysis

From: Characteristics of older adults admitted to the emergency department (ED) and their risk factors for ED readmission based on comprehensive geriatric assessment: a prospective cohort study

 

1 month

3 months*

Baseline variables

Readmitted (n = 18)

Not readmitted (n = 79)

P-value

Readmitted (n = 28)

Not readmitted (n = 68)

P-value

Age, mean (SD)

84.1 (4.8)

82.2 (4.8)

.138

83.7 (4.3)

82.0 (5.0)

.124

Female, n (%)

11 (61.1)

52 (65.8)

.705

19 (67.9)

43 (63.2)

.667

Living situation, n (%)

  

.641

  

.715

 - Home, alone

6 (33.3)

31 (39.2)

 

10 (35.7)

27 (39.7)

 - Home, together

12 (66.7)

48 (60.8)

 

18 (64.3)

41 (60.3)

Nursing care at home, n (%)

10 (55.6)

15 (19.5)

.002

14 (50.0)

11 (16.7)

.001

Home care, n (%)

2 (11.1)

5 (6.4)

.489

4 (14.3)

3 (4.5)

.095

Physiotherapy, n (%)

3 (16.7)

7 (9.0)

.336

5 (18.9)

5 (7.5)

.132

Meals on wheels, n (%)

5 (27.8)

4 (5.1)

.003

6 (21.4)

3 (4.5)

.010

Cleaning help, n (%)

12 (66.7)

32 (41.0)

.049

18 (64.3)

26 (38.8)

.023

Shopping assistance, n (%)

14 (77.8)

37 (46.8)

.018

21 (75.0)

30 (44.1)

.006

Help for finances, n (%)

6 (33.3)

34 (43.0)

.450

12 (42.9)

28 (41.1)

.876

Personal alarm system, n (%)

1 (5.6)

10 (12.7)

.391

5 (17.9)

6 (8.8)

.207

ADL, Me (Q1-Q3)

7 (6–8)

6 (6–7)

.091

7 (6–8)

6 (6–7)

.100

Number of medications at home, mean (SD)

8.0 (3.7)

6.7 (3.8)

.195

7.9 (3.6)

6.7 (3.8)

.172

ESI, n (%)^

  

.868

  

.925

 - 2

7 (41.2)

25 (36.2)

 

- 11 (42.3)

- 21 (35.6)

 - 3

6 (35.3)

35 (50.7)

 

- 10 (38.5)

- 31 (52.5)

 - 4

4 (23.5)

9 (13.0)

 

- 5 (19.2)

- 7 (11.9)

CIRS, mean (SD)

13.8 (5.3)

11.1 (4.1)

.021

13.1 (5.5)

11.1 (3.8)

.091

Get up and Go independent, n (%)

14 (87.5)

70 (93.3)

.427

24 (92.3)

59 (92.2)

.985

Falls in the last year, n (%)

12 (66.7)

40 (50.6)

.218

20 (71.4)

32 (47.1)

.029

Pain$, n (%)

6 (33.3)

33 (41.8)

.510

9 (32.1)

30 (44.1)

.312

Nutritional status, n (%)

  

.903

  

.975

 - Malnourished

2 (11.1)

9 (11.4)

 

3 (10.7)

8 (11.8)

 

 - Risk for malnutrition

7 (38.9)

35 (44.3)

 

12 (42.9)

30 (44.1)

 

 - Normal nutritional status

9 (50.0)

35 (44.3)

 

13 (46.4)

30 (44.1)

 

Sweet 16, mean (SD)

13.1 (1.3)

12.4 (2.8)

.136

12.4 (2.4)

12.6 (2.7)

.730

Delirium, n (%)

0 (0)

1 (1.3)

.629

1 (3.6)

0 (0)

.120

Risk for depression, n (%)

8 (44.4)

12 (15.4)

.006

11 (39.3)

9 (13.4)

.005

IQ-code, mean (SD)

51.5 (2.6)

51.9 (6.8)

.894

52.9 (6.9)

51.5 (6.3)

.574

Wounds, n (%)

5 (27.8)

9 (11.4)

.074

6 (21.4)

8 (11.8)

.223

Last hospitalisation <3 months, n (%)

8 (44.4)

11 (13.9)

.003

11 (39.3)

8 (11.8)

.002

Length of ED stay in hours, Me (Q1-Q3)

7 h09 (5 h31-17 h28)

8 h34 (5 h47-16 h35)

.528

8 h24 (5 h54-22 h59)

8 h23 (5 h29-15 h32)

.256

  1. Univariate analysis.
  2. SD = Standard deviation; IQR = Interquartile range; ADL = Activities of Daily Living; CIRS = Modified Cumulative Illness Rating Scale; MNA = Mini Nutritional Assessment; ESI = Emergency Severity Index; ED = emergency department; * 1 patient loss-to-follow-up; $ Visual Analog Scale > 1, ^ ESI not scored during nighttime.