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Table 3 Adjusted associations between 3-day ED re-attendance rate and the factors by hospital

From: Unplanned 3-day re-attendance rate at Emergency Department (ED) and hospital’s bed occupancy rate (BOR)

 

Hospital A

Hospital B

Hospital C

Risk ratio

95 % Confidence interval

Risk ratio

95 % Confidence interval

Risk ratio

95 % Confidence interval

Parameter

Lower

Upper

Lower

Upper

Lower

Upper

Day of week a [Thu]

         

 Mon

3.14

2.24

4.40

1.92

1.49

2.47

1.99

1.60

2.47

 Tue

2.11

1.51

2.96

1.34

1.05

1.71

1.68

1.36

2.07

 Wed

1.50

1.08

2.10

1.04

0.82

1.33

1.04

0.85

1.29

 Fri

2.56

1.83

3.58

2.07

1.61

2.66

1.64

1.32

2.02

 Sat

2.23

1.59

3.13

1.78

1.36

2.32

1.71

1.38

2.11

 Sun

4.00

2.82

5.67

2.95

2.26

3.85

3.03

2.39

3.85

Month a [Jan]

         

 Feb

1.21

0.77

1.88

1.18

0.85

1.63

1.27

0.96

1.68

 Mar

1.14

0.74

1.76

0.96

0.70

1.32

1.25

0.96

1.64

 April

1.42

0.92

2.20

1.12

0.81

1.54

1.29

0.98

1.69

 May

1.22

0.79

1.88

1.29

0.94

1.78

1.12

0.85

1.47

 Jun

1.39

0.90

2.17

1.37

0.99

1.89

0.83

0.63

1.09

 Jul

0.64

0.41

1.00

1.24

0.90

1.71

1.19

0.91

1.56

 Aug

1.05

0.68

1.63

1.28

0.93

1.76

1.08

0.82

1.42

 Sep

0.92

0.59

1.44

1.25

0.90

1.72

0.97

0.73

1.27

 Oct

0.96

0.62

1.49

1.01

0.74

1.40

1.10

0.84

1.44

 Nov

0.94

0.61

1.47

1.02

0.74

1.41

1.16

0.88

1.53

 Dec

1.60

1.03

2.49

1.30

0.94

1.79

0.72

0.55

0.95

Public holidaya

1.01

0.61

1.68

1.26

0.86

1.84

1.04

0.75

1.43

BOR a

1.01

1.00

1.02

1.02

1.00

1.04

1.01

0.99

1.02

Admission rate a

0.97

0.95

1.00

0.99

0.97

1.00

0.99

0.98

1.00

BWT (95th percentile)a

1.13

0.98

1.29

1.03

0.99

1.08

0.99

0.97

1.01

Time trend

1.00 b

1.00

1.00

1.00 b

1.00

1.00

1.00 c

1.00

1.00

  1. Significant factors were italicized
  2. aRefers to the index visit to ED
  3. bDecreasing trend
  4. cIncreasing trend