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Table 3 Scoring formula and the observed probability of required rehabilitation duration

From: Identifying factors predicting prolonged rehabilitation after simultaneous bilateral total knee arthroplasty: a retrospective observational study

Scoring formula

Outcomes

Factors

Points

Total score

n

Compliance group

Delayed group

Observed probability of required rehabilitation duration conformance, %

 

+  10

0–1

1

0

1

0.0%

Age, (years)

× −0.09

1–2

9

2

7

22.2%

BMI

× −0.09

2–3

40

20

20

50.0%

Living alone

× −0.56

3–4

74

52

22

70.3%

KSS: stairs

× 0.03

4–5

47

41

6

87.2%

Hemoglobin, g/dL

× 0.34

5–6

13

11

2

84.6%

ASA class

× −1.1

6–7

7

6

1

85.7%

  1. n number, KSS knee society score, BMI body mass index