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Table 1 The basic characteristics of study subjects

From: Association between Frequency Domain Heart Rate Variability and Unplanned Readmission to Hospital in Geriatric Patients

Variable

 

Unplanned

Readmission

n = 15

n (%)

Non-unplanned readmission

n = 63

n (%)

p- value

Sex

male

5 (33.3)

28 (44.4)

0.434

 

female

10 (66.7)

35 (55.6)

 

Age (years)

80 (72, 90)*

81 (73, 86)

0.929

Length of hospitalization (days)

10 (6, 16)

9 (7, 13)

0.541

Hypertension

9 (60)

41 (65)

0.713

Diabetes

7 (47)

19 (30)

0.223

Diagnosis at index admission

    
 

pneumonia

9 (60)

25 (40)

0.154

 

urinary tract infection

8 (53)

44 (70)

0.223

 

electrolyte imbalance

3 (20)

9 (14)

0.582

 

gastro-intestinal tract bleeding

1 (7)

2 (3)

0.527

 

cerebral vascular accident

2 (13)

8 (13)

0.947

Activity level

   

0.288

 

can walk in hospital room

1 (7)

3 (5)

 
 

on bed and can change position

0

9 (14)

 
 

bedridden

14 (93)

50 (79)

 

Glasgow Coma Scale

12 (7, 14)

10 (8, 14)

0.880

WBC before discharge (×103/μl)

8.8 (6.7, 10.0)

6.8 (5.6, 8.5)

0.027

Blood urea nitrogen (mg/dL)

25 (13, 32)

16.5 (13.0, 29.0)

0.584

Blood glucose (mg/dL)

142 (110, 239)

128 (105, 164)

0.302

Serum GOT (mg/dL)

20 (14, 23)

22 (16, 32)

0.212

  1. WBC = white blood cell; GOT = glutamic oxaloacetic transaminase
  2. * continuous variables were expressed as median (first quartile, third quartile)