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Table 2 Comparison of post-operative outcomes between low step count and normal step count patients

From: The association between low pre-operative step count and adverse post-operative outcomes in older patients undergoing colorectal cancer surgery

Patient variables

All patients (n = 85)

Normal step count (> 2500 steps, n = 68)

Low step count (< 2500 steps, n = 17)

Univariable OR (95%CI)

p value

Adjusted OR* (95% CI)

Adjusted p value

Length of stay (days)

 Median (IQR)

7 (5–11)

6 (4.8–8)

14 (9–23)

IRR 2.75 (2.19–3.47)

< 0.01

IRR 2.09 (1.55–2.83)

< 0.01

ICU/HDU length of stay (days)

 Median (IQR)

0 (0–1)

0 (0–1)

2 (1–2)

IRR 5.75 (3.13–11.6)

< 0.01

IRR 3.14 (1.64–6.05)

< 0.01

Days in hospital at 90 days (days)

 Median (IQR)

7 (5–13)

7 (5–11)

17 (9–31)

IRR 2.39 (1.76–3.24)

< 0.01

IRR 2.47 (1.71–3.63)

< 0.01

Clavien-Dindo complication (n, %)

 No

38 (44.7)

34 (50.0)

4 (23.5)

Ref

 

Ref

 

 Any

47 (55.3)

34 (50.0)

13 (76.5)

3.25 (1.1–12.1)

0.05

2.02 (0.58–8.23)

0.29

 I–II

36 (42.4)

28 (41.2)

8 (47.1)

1.27 (0.43–3.72)

0.66

1.07 (0.35–3.25)

0.90

 III–V

11 (12.9)

6 (8.8)

5 (29.4)

4.31 (1.09–16.7)

0.03

3.34 (1.03–14.3)

0.04

Length of stay > 7 days (n, %)

 No

49 (57.6)

46 (67.6)

3 (17.6)

Ref

 

Ref

 

 Yes

36 (42.3)

22 (32.4)

14 (82.4)

8.04 (2.24–38.6)

< 0.01

9.76 (2.84–45.6)

< 0.01

Unplanned readmission at 90 days (n, %)

 No

69 (81.2)

56 (82.4)

13 (76.5)

Ref

 

Ref

 

 Yes

16 (18.8)

12 (17.6)

4 (23.5)

1.44 (0.36–4.92)

0.58

1.99 (0.44–8.45)

0.35

Discharge to rehab/care facility (n, %)

 No

73 (85.9)

64 (94.1)

9 (52.9)

Ref

 

Ref

 

 Yes

12 (14.1)

4 (5.9)

8 (47.1)

14.2 (3.74–63.2)

< 0.01

10.4 (2.53–49.2)

< 0.01

Support on discharge (n, %)

 No

69 (81.2)

60 (88.2)

9 (52.9)

Ref

 

Ref

 

 Yes

16 (18.8)

8 (11.8)

8 (47.1)

6.67 (2.01–23.0)

< 0.01

5.33 (1.35–22.8)

0.03

Post-operative day 90 living status (n, %)

 Home independent

72 (84.7)

61 (89.7)

11 (64.7)

0.27 (0.09–0.84)

0.04

0.21 (0.05–0.76)

0.02

 Home with care

4 (4.7)

2 (2.9)

2 (11.8)

2.22 (0.08–24.5)

0.60

2.06 (0.09–22.9)

0.56

 Hospital inpatient

1 (1.2)

0

1 (5.9)

  

-

-

 N/A

8 (9.4)

5 (7.4)

3 (17.6)

  

-

-

  1. IRR incidence rate ratio
  2. *Adjusted for age, gender, tumour stage and operative access