Table 2 Absolute risk and hazard ratios (95% CI) between categories of LoS and 4-month readmissions, for the full sample and stratified by; sex, age groups, and living arrangements prior to admission

All

73,551

18,638

25.3

2–4

8,982

1,729

19.3

0.76 (0.72–0.80)

0.82 (0.77–0.87)

5–8

21,723

4,683

21.6

0.84 (0.81–0.87)

0.87 (0.83–0.91)

9–12

19,913

5,197

26.1

Ref

Ref

13–23

20,123

6,073

30.2

1.16 (1.12–1.21)

1.09 (1.05–1.13)

24+

2,810

956

34.0

1.35 (1.26–1.45)

1.19 (1.11–1.28)

Women

50,928

11,791

23.2

2–4

6,133

1,057

17.2

0.74 (0.69–0.79)

0.80 (0.75–0.87)

5–8

15,331

2,982

19.5

0.82 (0.78–0.86)

0.86 (0.82–0.90)

9–12

13,902

3,320

23.9

Ref

Ref

13–23

13,747

3,853

23.9

1.19 (1.13–1.25)

1.09 (1.04–1.15)

24+

1,815

579

31.9

1.40 (1.28–1.53)

1.22 (1.12–1.34)

Men

22,623

6,847

30.3

2–4

2,849

672

23.6

0.80 (0.73–0.87)

0.84 (0.76–0.92)

5–8

6,392

1,701

26.6

0.87 (0.81–0.87)

0.89 (0.83–0.95)

9–12

6,011

1,877

31.2

Ref

Ref

13–23

6,376

2,220

34.8

1.13 (1.06–1.20)

1.08 (1.02–1.15)

24+

995

377

37.9

1.29 (1.15–1.44)

1.16 (1.03–1.29)

Age 65–79

22,849

5,170

22.6

2–4

3,437

590

17.2

0.71 (0.65–0.78)

0.81 (0.73–0.90)

5–8

7,411

1,389

18.7

0.79 (0.73–0.85)

0.84 (0.78–0.91)

9–12

5,978

1,404

23.5

Ref

Ref

13–23

5,306

1,539

29.0

1.26 (1.17–1.36)

1.14 (1.06–1.22)

24+

717

248

34.6

1.55 (1.35–1.77)

1.25 (1.09–1.44)

Age 80+

50,701

13,468

26.6

2–4

5,545

1,139

20.5

0.80 (0.74–0.85)

0.85 (0.79–0.92)

5–8

14,311

3,294

23.0

0.86 (0.83–0.91)

0.90 (0.86–0.95)

9–12

13,935

3,793

27.2

Ref

Ref

13–23

14,817

4,534

30.6

1.14 (1.09–1.19)

1.07 (1.02–1.12)

24+

2,093

708

33.8

1.30 (1.20–1.40)

1.16 (1.07–1.26)

Independent living

52,856

13,636

25.8

2–4

3,340

533

16.0

0.64 (0.58–0.70)

0.77 (0.70–0.84)

5–8

12,809

2,675

20.9

0.81 (0.78–0.86)

0.87 (0.83–0.92)

9–12

16,561

4,314

26.1

Ref

Ref

13–23

17,665

5,282

29.9

1.15 (1.11–1.20)

1.06 (1.02–1.11)

24+

2,481

832

33.5

1.33 (1.24–1.43)

1.16 (1.07–1.25)

Care home

20,695

5,002

24.2

2–4

5,642

1,196

21.2

0.81 (0.74–0.88)

0.84 (0.77–0.91)

5–8

8,914

2,008

22.5

0.86 (0.80–0.94)

0.88 (0.81–0.96)

9–12

3,352

883

26.3

Ref

Ref

13–23

2,458

791

32.2

1.22 (1.11–1.34)

1.18 (1.07–1.30)

24+

329

124

37.7

1.48 (1.22–1.78)

1.40 (1.15–1.69)