Table 3 Odds ratios of specific Edmonton Frailty Scale domains for postoperative 4AT score ≥ 4

Clock draw

0.44^b

 Spacing errors vs no error

1.27 [0.32–5.00]

0.73

 Other errors vs no error

2.62 [0.60–11.42]

0.20

Hospital admissions

0.15^b

 1–2 vs 0

3.02 [0.80–11.33]

0.10

  ≥ 2 vs 0

3.83 [0.87–16.83]

0.08

General health

0.44^b

 Fair vs good to excellent

0.68 [0.19–2.48]

0.56

 Poor vs good to excellent

1.86 [0.41–8.43]

0.42

Functional independence (ADL needs)

0.07^b

 2–4 vs 0–1

3.37 [1.04–10.98]

0.04

 5–8 vs 0–1

5.02 [0.84–30.13]

0.08

Social support

0.84^b

 Sometimes vs always

0.72 [0.04–12.80]

0.82

 Never vs always

2.63 [0.08–91.68]

0.59

Polypharmacy, yes vs no

0.80 [0.21–3.11]

0.75

Forgetting to take medications, yes vs no

2.89 [0.94–8.82]

0.06

Weight loss, yes vs no

1.43 [0.45–4.55]

0.54

Depressed mood, yes vs no

1.27 [0.37–4.31]

0.70

Incontinence, yes vs no

3.77 [1.19–11.92]

0.02

Functional performance (timed get up and go)

0.10^b

 11–20 sec vs 0–10 sec

3.58 [0.98–13.15]

0.05

  > 20 sec / unwilling / needs assistance vs 0–10 sec

3.84 [0.95–15.55]

0.06