Table 2 Adjusted effects on readmission risk.

From: Postoperative Rehabilitation May Reduce the Risk of Readmission After Groin Hernia Repair

  

n (%)

Odds ratio (95% CI)

P

Age

Year over 60

63,056 (51.3)

1.03 (1.02, 1.03)

<0.001

Sex

Female

16,027 (13.0)

0.89 (0.80, 0.98)

0.021

Co-morbidities*

Class 0

75,185 (61.1)

1.00

 
 

Class 1

25,652 (20.9)

1.17 (1.06, 1.29)

0.002

 

Class 2

327 (0.3)

1.20 (0.65, 2.22)

0.565

 

Class 3

12,064 (9.8)

1.38 (1.23, 1.55)

<0.001

 

Class 4

5,514 (4.5)

1.62 (1.41, 1.87)

<0.001

 

Class 5

2,615 (2.1)

2.51 (2.13, 2.97)

<0.001

 

Class 6

398 (0.3)

3.51 (2.58, 4.76)

<0.001

 

Class 7

691 (0.6)

3.06 (2.40, 3.89)

<0.001

 

Class 8

506 (0.4)

4.32 (3.34, 5.59)

<0.001

1-year prior hospitalization

Yes

19,071 (15.5)

1.56 (1.44, 1.69)

<0.001

Complicated hernia diagnosis

Yes

5,936 (4.8)

1.20 (1.03, 1.39)

0.018

Severity level

Same-day surgery

48,346 (39.3)

0.78 (0.71, 0.86)

<0.001

 

1 (low)

61,688 (50.2)

1.00

 
 

2

9,828 (8.0)

1.36 (1.21, 1.52)

<0.001

 

3

2,465 (2.0)

1.48 (1.25, 1.75)

<0.001

 

4 (high)

625 (0.5)

1.88 (1.46, 2.42)

<0.001

Emergency entrance

Yes

4,694 (3.8)

1.28 (1.10, 1.49)

0.002

Transfer at entrance

Yes

447 (0.4)

1.50 (1.11, 2.02)

0.008

Surgery technique

Laparoscopy

41,664 (33.9)

0.83 (0.76, 0.91)

<0.001

Mesh repair

Yes

110,117 (89.6)

0.88 (0.79, 0.98)

0.017

Concomitant procedure

Yes

30,873 (25.1)

1.28 (1.18, 1.40)

<0.001

Intensive care unit

≥1 day

181 (0.1)

2.60 (1.82, 3.70)

<0.001

Step down unit

≥1 day

560 (0.5)

1.51 (1.19, 1.91)

0.001

Transfer to acute care

Yes

592 (0.5)

3.95 (3.16, 4.94)

<0.001

Post-acute rehabilitation

Yes

1,787 (1.5)

0.56 (0.46, 0.69)

<0.001

Hospital surgery volume

1st quartile (≤25%)

30,092 (24.5)

1.00

 
 

2nd quartile (26–30%)

28,638 (23.3)

0.93 (0.85, 1.02)

0.128

 

3rd quartile (31–45%)

32,116 (26.1)

0.81 (0.73, 0.90)

<0.001

 

4th quartile (>45%)

32,106 (26.1)

0.79 (0.70, 0.90)

<0.001

Hospital activities diversity†

1st quartile (≤300 DRG/year)

32,408 (26.4)

1.00

 
 

2nd quartile (301–400)

44,596 (36.3)

1.05 (0.94, 1.18)

0.374

 

3rd quartile (401–500)

28,817 (23.4)

1.10 (0.96, 1.25)

0.169

 

4th quartile (>500)

17,131 (13.9)

1.25 (1.08, 1.44)

0.002

  1. †DRG, diagnosis-related groups.
  2. *Co-morbidity classes: (0) no condition; (1) other conditions; (2) infectious and parasitic diseases; (3) diseases of the digestive, respiratory, genitourinary, or nervous system, or injury, poisoning or certain other consequences of external causes; (4) any combinations between diseases of the digestive, respiratory, genitourinary, or circulatory system, or endocrine, nutritional or metabolic diseases, or congenital malformations, deformations or chromosomal abnormalities, or injury, poisoning or certain other consequences of external causes; (5) any combinations of symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified with any other diseases; (6) any combinations of symptoms, signs and abnormal clinical and laboratory findings not elsewhere classified with diseases of the genitourinary system; (7) any combinations of symptoms, signs and abnormal clinical and laboratory findings not elsewhere classified with diseases of the digestive system; (8) any combinations of symptoms, signs and abnormal clinical and laboratory findings not elsewhere classified with diseases of the respiratory system.
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