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Table 1 Characteristics of admissions before and after the policy change

From: The association between hallway boarding in internal wards, readmission and mortality rates: a comparative, retrospective analysis, following a policy change

Characteristics

Internal department A

Internal department B

All

Before

After

All

p-value

Before

After

All

p-value

Before

After

All

p-value

Number of admissions

4432

6028

10,460

 

4151

5934

10,085

 

8583

11,962

20,545

 

Female (%)

53%

52%

53%

0.337

51%

52%

52%

0.115

52%

52%

52%

0.691

Age

 Mean (years)

77.9

77.5

77.7

0.165

75.5

76.3

76.0

0.011

76.7

76.9

76.8

0.417

 Median (years)

82

81

81

 

80

80

80

 

81

81

81

 

 18–45 (%)

4%

4%

4%

0.247

6%

6%

6%

0.177

5%

5%

5%

0.629

 45–64 (%)

12%

13%

12%

 

14%

13%

14%

 

13%

13%

13%

 

 65–74 (%)

15%

16%

15%

 

16%

17%

16%

 

16%

16%

16%

 

 75–84 (%)

30%

29%

29%

 

29%

28%

28%

 

29%

29%

29%

 

 85+ (%)

40%

39%

39%

 

35%

36%

36%

 

37%

38%

37%

 

Hospitalization in the year prior to admission

 Mean (number)

2.0

2.0

2.0

0.898

1.9

1.9

1.9

0.117

1.9

2.0

2.0

0.334

 0 (%)

33%

33%

33%

0.417

36%

34%

35%

0.044

34%

33%

34%

0.209

 1–2 (%)

39%

39%

39%

 

37%

37%

37%

 

38%

38%

38%

 

 3–5 (%)

21%

20%

21%

 

19%

21%

20%

 

20%

21%

20%

 

 6+ (%)

8%

8%

8%

 

7%

8%

8%

 

8%

8%

8%

 

Charlson Comorbidity Index

 CCI 0 (%)

28%

25%

26%

< 0.001

28%

28%

28%

0.080

28%

26%

27%

< 0.001

 CCI 1–2 (%)

47%

46%

47%

 

45%

45%

45%

 

46%

46%

46%

 

 CCI 3–4 (%)

19%

22%

21%

 

21%

21%

21%

 

20%

21%

21%

 

 CCI > =5 (%)

5%

8%

7%

 

5%

7%

6%

 

5%

7%

6%

 

Length of stay

 Mean (days)

10.2

10.2

10.2

0.962

10.9

10.2

10.5

0.012

10.5

10.2

10.3

0.072

 SD (days)

13.4

14.0

13.7

 

15.3

13.4

14.2

 

14.4

13.7

14.0

 

 Median (days)

7

6

6

 

7

6

6

 

7

6

6

 

 0–1 (%)

5%

4%

4%

0.002

4%

4%

4%

0.001

5%

4%

4%

< 0.001

 2–3 (%)

16%

18%

17%

 

16%

20%

18%

 

16%

19%

18%

 

 4–5 (%)

19%

20%

20%

 

20%

21%

21%

 

20%

21%

20%

 

 6–7 (%)

16%

17%

17%

 

16%

16%

16%

 

16%

16%

16%

 

 8–10 (%)

15%

15%

15%

 

14%

13%

14%

 

15%

14%

14%

 

 11–15 (%)

13%

11%

12%

 

12%

10%

11%

 

13%

11%

11%

 

 16–20 (%)

6%

5%

6%

 

6%

5%

6%

 

6%

5%

6%

 

 21–30 (%)

5%

5%

5%

 

6%

5%

5%

 

5%

5%

5%

 

  > 30 (%)

5%

5%

5%

 

6%

6%

6%

 

5%

5%

5%

 

 Number of admissions per month

120

137

129

 

112

135

125

 

232

272

254

 

 Number of hospitalized patients per day*

40

46

43

 

40

45

43

 

80

91

86

 
  1. * Calculated as the total number of hospitalization days divided by the number of days within the time-period